Finding the Fourth Proportional to 2,656.56, 3,984.72 and 925.32

Step by Step Solution

1. Step 1: Write the proportion equation
   2,656.56 : 3,984.72 = 925.32 : x
2. Step 2: Convert to fraction form
   2,656.56/3,984.72 = 925.32/x
3. Step 3: Cross multiply
   2,656.56x = 3,984.72 × 925.32
4. Step 4: Simplify right side
   2,656.56x = 3,687,141.11
5. Step 5: Solve for x
   x = 3,687,141.11/2,656.56
6. Step 6: Final answer
   x = 1,387.94