Finding the Fourth Proportional to 3,892.88, 5,842.20 and 3,132.56

Step by Step Solution

1. Step 1: Write the proportion equation
   3,892.88 : 5,842.20 = 3,132.56 : x
2. Step 2: Convert to fraction form
   3,892.88/5,842.20 = 3,132.56/x
3. Step 3: Cross multiply
   3,892.88x = 5,842.20 × 3,132.56
4. Step 4: Simplify right side
   3,892.88x = 18,301,042.03
5. Step 5: Solve for x
   x = 18,301,042.03/3,892.88
6. Step 6: Final answer
   x = 4,701.16