Finding the Fourth Proportional to 2,456.31, 3,685.14 and 724.94

Step by Step Solution

1. Step 1: Write the proportion equation
   2,456.31 : 3,685.14 = 724.94 : x
2. Step 2: Convert to fraction form
   2,456.31/3,685.14 = 724.94/x
3. Step 3: Cross multiply
   2,456.31x = 3,685.14 × 724.94
4. Step 4: Simplify right side
   2,456.31x = 2,671,505.39
5. Step 5: Solve for x
   x = 2,671,505.39/2,456.31
6. Step 6: Final answer
   x = 1,087.61