Answer:
$1,024,000
Step-by-step explanation:
with your $1,000,000 you can currently buy $1,000,000 / $1.3 = £769,231
then you invest your £769,231 and receive = £769,231 x (1 + 4%) = £800,000
since the forward rate for three months = $1.28, then at the end of the three months you will have £800,000 x $1.28 = $1,024,000
if you simply invested your money in the US, you would earned more money ? $1,000,000 x (1 + 3%) = $1,030,000. You lower gains are the result of the British pound depreciating against the dollar.