You have the concept correct -- just swap the trig functions.

When working with cartesian coordinates,

thesin()will give the distance to be added/subtracted to theY coordinate. Since 239+ degrees is in the third quadrant, the sin value is negative.

thecos()will give the distance to be added/subtracted to theX coordinate.

You can look at the sin/cos definitions to clarify this.

Try this:

X2 = (75 * cos(239.2550)) + 2279540.5757

Y2 = (75 * sin(239.2550)) + 841723.9968

Your calculator should provide the correct sign for the sin/cos values.

However in this casethe sin/cos values will be negative.BOTH