Fiji 1986 - EPSG:4720

WKT

GEOGCS["GCS_Fiji_1986", 
	DATUM["D_Fiji_1986", 
		SPHEROID["WGS_1972", 6378135.0, 298.26]], 
	PRIMEM["Greenwich", 0.0], 
	UNIT["Degree", 0.0174532925199433]]

WKT2

GEOGCRS["GCS_Fiji_1986", 
	DATUM["D_Fiji_1986", 
		ELLIPSOID["WGS_1972", 6378135.0, 298.26]], 
	PRIMEM["Greenwich", 0.0], 
	CS[ellipsoidal, 2], 
	AXIS["Latitude (lat)", north, 
		ORDER[1]], 
	AXIS["Longitude (lon)", east, 
		ORDER[2]], 
	ANGLEUNIT["Degree", 0.0174532925199433], 
	ID["EPSG", "4720"]]

Data from @esri/proj-codes

{
  "wkid": 4720,
  "latestWkid": 4720,
  "macro": "PE_GCS_FIJI_1986",
  "name": "GCS_Fiji_1986",
  "wkt": "GEOGCS[\"GCS_Fiji_1986\",DATUM[\"D_Fiji_1986\",SPHEROID[\"WGS_1972\",6378135.0,298.26]],PRIMEM[\"Greenwich\",0.0],UNIT[\"Degree\",0.0174532925199433]]",
  "wkt2": "GEOGCRS[\"GCS_Fiji_1986\",DATUM[\"D_Fiji_1986\",ELLIPSOID[\"WGS_1972\",6378135.0,298.26]],PRIMEM[\"Greenwich\",0.0],CS[ellipsoidal,2],AXIS[\"Latitude (lat)\",north,ORDER[1]],AXIS[\"Longitude (lon)\",east,ORDER[2]],ANGLEUNIT[\"Degree\",0.0174532925199433],ID[\"EPSG\",\"4720\"]]",
  "description": "Fiji 1986",
  "authority": "EPSG",
  "version": "6.11(9.2.0)",
  "deprecated": "no",
  "areaname": "Fiji - onshore",
  "extent": {
    "slat": -20.81,
    "nlat": -12.42,
    "llon": 176.81,
    "rlon": -178.15
  }
}