Finding the Fourth Proportional to 1,545.54, 2,132.56 and 1,105.37

Step by Step Solution

1. Step 1: Write the proportion equation
   1,545.54 : 2,132.56 = 1,105.37 : x
2. Step 2: Convert to fraction form
   1,545.54/2,132.56 = 1,105.37/x
3. Step 3: Cross multiply
   1,545.54x = 2,132.56 × 1,105.37
4. Step 4: Simplify right side
   1,545.54x = 2,357,267.85
5. Step 5: Solve for x
   x = 2,357,267.85/1,545.54
6. Step 6: Final answer
   x = 1,525.21