Finding the Fourth Proportional to 2,456.85, 3,685.82 and 725.43

Step by Step Solution

1. Step 1: Write the proportion equation
   2,456.85 : 3,685.82 = 725.43 : x
2. Step 2: Convert to fraction form
   2,456.85/3,685.82 = 725.43/x
3. Step 3: Cross multiply
   2,456.85x = 3,685.82 × 725.43
4. Step 4: Simplify right side
   2,456.85x = 2,673,800.78
5. Step 5: Solve for x
   x = 2,673,800.78/2,456.85
6. Step 6: Final answer
   x = 1,088.30