Finding the Fourth Proportional to 2,456.76, 3,684.78 and 725.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,456.76 : 3,684.78 = 725.52 : x
2. Step 2: Convert to fraction form
   2,456.76/3,684.78 = 725.52/x
3. Step 3: Cross multiply
   2,456.76x = 3,684.78 × 725.52
4. Step 4: Simplify right side
   2,456.76x = 2,673,381.59
5. Step 5: Solve for x
   x = 2,673,381.59/2,456.76
6. Step 6: Final answer
   x = 1,088.17