What was the question for this implicit rationale, and corresponding answer?
He deposited 2000 * 52 = $104,000 into his account. So he has 250000 + 104000 = $354,000. His windfall is worth .5 * 354,000 = $177,000 more than his current account. That means he got 177,000 + 354,000 = $531,000. So he had a total of 531,000 + 354,000 = $885,000.
 The answer: 885000
The question: James invests $2000 a week into his bank account. He had $250,000 in his account when the year started. At the end of the year, he gets a windfall that is worth 50% more than what he has in his bank account.  How much money does he have?