Finding the Fourth Proportional to 2,526.87, 3,790.52 and 772.27

Step by Step Solution

1. Step 1: Write the proportion equation
   2,526.87 : 3,790.52 = 772.27 : x
2. Step 2: Convert to fraction form
   2,526.87/3,790.52 = 772.27/x
3. Step 3: Cross multiply
   2,526.87x = 3,790.52 × 772.27
4. Step 4: Simplify right side
   2,526.87x = 2,927,304.88
5. Step 5: Solve for x
   x = 2,927,304.88/2,526.87
6. Step 6: Final answer
   x = 1,158.47