Finding the Fourth Proportional to 2,517.57, 3,776.24 and 762.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,517.57 : 3,776.24 = 762.50 : x
2. Step 2: Convert to fraction form
   2,517.57/3,776.24 = 762.50/x
3. Step 3: Cross multiply
   2,517.57x = 3,776.24 × 762.50
4. Step 4: Simplify right side
   2,517.57x = 2,879,360.31
5. Step 5: Solve for x
   x = 2,879,360.31/2,517.57
6. Step 6: Final answer
   x = 1,143.71