Finding the Fourth Proportional to 2,490.45, 3,435.12 and 1,545.24

Step by Step Solution

1. Step 1: Write the proportion equation
   2,490.45 : 3,435.12 = 1,545.24 : x
2. Step 2: Convert to fraction form
   2,490.45/3,435.12 = 1,545.24/x
3. Step 3: Cross multiply
   2,490.45x = 3,435.12 × 1,545.24
4. Step 4: Simplify right side
   2,490.45x = 5,308,084.83
5. Step 5: Solve for x
   x = 5,308,084.83/2,490.45
6. Step 6: Final answer
   x = 2,131.38