Finding the Fourth Proportional to 2,456.53, 3,685.38 and 725.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,456.53 : 3,685.38 = 725.16 : x
2. Step 2: Convert to fraction form
   2,456.53/3,685.38 = 725.16/x
3. Step 3: Cross multiply
   2,456.53x = 3,685.38 × 725.16
4. Step 4: Simplify right side
   2,456.53x = 2,672,490.16
5. Step 5: Solve for x
   x = 2,672,490.16/2,456.53
6. Step 6: Final answer
   x = 1,087.91