Let's break down X's movements:
X starts at corner D and walks diagonally across the square field towards corner A. The diagonal AC is from North to South.
After walking half the distance of the diagonal (45 meters), he turns right. Since the diagonal is from North to South, turning right will point him towards the West.
After walking some distance, he turns left. Turning left from facing West will point him towards the South.
Thus, after the turn, X will be facing East.