#### Answer

The boat is accelerating to the west at $0.31m/s^2$.

#### Work Step by Step

1. Draw the free body diagram:
** I'm going to consider east as the positive x direction.
2. Now, calculate the net force:
F = $(-4100N) + (800N) + (1200N) = -2100N$
3, Now, calculate the aceleration.
$F = ma$
$-2100 = 6800a$
Divide both sides by 6800:
$\frac{-2100}{6800} = a$
$a = -0.31m/s^2$
So, the boat is accelerating to the west at $0.31m/s^2$.