Finding the Fourth Proportional to 3,545.56, 4,892.16 and 2,147.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,545.56 : 4,892.16 = 2,147.50 : x
2. Step 2: Convert to fraction form
   3,545.56/4,892.16 = 2,147.50/x
3. Step 3: Cross multiply
   3,545.56x = 4,892.16 × 2,147.50
4. Step 4: Simplify right side
   3,545.56x = 10,505,913.60
5. Step 5: Solve for x
   x = 10,505,913.60/3,545.56
6. Step 6: Final answer
   x = 2,963.12