First, Proc MAPIMPORT just takes the same coordinates that was in the shapefile. It just converts the shapefile into a SAS Date set. (Note, you may need to use the ID statement. See the doc and examples).
Second, If you are using MAPS for your map it is likely in Radians. If you are using the newer MAPSGFK maps, then it is in Degrees. The shapefile is probably in Degrees.
Third, you need to know what projection your shapefile is in. It may be unprojected. In that case, you would need to take your MAPS or your MAPSGFK data as unprojected too (MAPS must be converted to degrees). Use Proc GPROJECT to project your data. You need to combine both the maps and the coordinates together.
... View more