He Springfield Friends Foundation collects donations of money. They spend every dollar they receive on programs for different community charities. Donations are recorded as positive values. The costs of programs are recorded as negative values. For the last month, the records show that the Foundation received donations of $250, $1,000, $500, and a fourth donation that was incorrectly recorded. The foundation used all four donations to fund a program. The cost of the program was listed as −$2,000, and they had nothing left over. What was the value of the fourth donation?