Finding the Fourth Proportional to 2,456.56, 3,684.93 and 725.23

Step by Step Solution

1. Step 1: Write the proportion equation
   2,456.56 : 3,684.93 = 725.23 : x
2. Step 2: Convert to fraction form
   2,456.56/3,684.93 = 725.23/x
3. Step 3: Cross multiply
   2,456.56x = 3,684.93 × 725.23
4. Step 4: Simplify right side
   2,456.56x = 2,672,421.78
5. Step 5: Solve for x
   x = 2,672,421.78/2,456.56
6. Step 6: Final answer
   x = 1,087.87