Density gas question help

The density of a gas is 1.20 g/l at 25 degree celcius and 102.6 kPa. what is the density of the gas at stp? hwo do you do this im so confused
thx

PV = nRT
Density is proportional to n/V which is equal to P/RT.
So the density is proportional to P and inversely proportional to T.

(1.20 g/L) x (298 / 273) x (100.0 / 102.6) = 1.28 g/L