Finding the Fourth Proportional to 3,900.56, 5,382.72 and 2,132.24

Step by Step Solution

1. Step 1: Write the proportion equation
   3,900.56 : 5,382.72 = 2,132.24 : x
2. Step 2: Convert to fraction form
   3,900.56/5,382.72 = 2,132.24/x
3. Step 3: Cross multiply
   3,900.56x = 5,382.72 × 2,132.24
4. Step 4: Simplify right side
   3,900.56x = 11,477,250.89
5. Step 5: Solve for x
   x = 11,477,250.89/3,900.56
6. Step 6: Final answer
   x = 2,942.46