If an ounce of gold trades in the U.S for $1.319 and it trades in the U.K for pounds 916, according to Purchasing Power Parity what should be the exchange rate of the British Pound per U.S dollar

A currency hedge fund based in the U.S. entered into a six-month forward contract to buy BRL 13mn. At the time the hedge fund entered the contract, the one-year forward rate stood at BRL 3.2186/USD. When the contract expired, the spot rate was BRL 4.3246/USD. Calculate the profit or loss (in USD) for the hedge fund.