Finding the Fourth Proportional to 2,539.72, 3,505.50 and 1,545.33

Step by Step Solution

1. Step 1: Write the proportion equation
   2,539.72 : 3,505.50 = 1,545.33 : x
2. Step 2: Convert to fraction form
   2,539.72/3,505.50 = 1,545.33/x
3. Step 3: Cross multiply
   2,539.72x = 3,505.50 × 1,545.33
4. Step 4: Simplify right side
   2,539.72x = 5,417,154.32
5. Step 5: Solve for x
   x = 5,417,154.32/2,539.72
6. Step 6: Final answer
   x = 2,132.97