Finding the Fourth Proportional to 2,574.52, 3,861.50 and 725.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,574.52 : 3,861.50 = 725.69 : x
2. Step 2: Convert to fraction form
   2,574.52/3,861.50 = 725.69/x
3. Step 3: Cross multiply
   2,574.52x = 3,861.50 × 725.69
4. Step 4: Simplify right side
   2,574.52x = 2,802,248.31
5. Step 5: Solve for x
   x = 2,802,248.31/2,574.52
6. Step 6: Final answer
   x = 1,088.46