Two workers drag a heavy log with ropes…

Step 1. Size. $R = \sqrt{(240\ \text{N})^2 + (450\ \text{N})^2} = 510\ \text{N}$.

Step 2. Direction. $\tan\alpha = \dfrac{450\ \text{N}}{240\ \text{N}} = 1.875$, so $\alpha = 61.9^\circ$ north of east.