Finding the Fourth Proportional to 1,123.58, 1,545.39 and 902.04

Step by Step Solution

1. Step 1: Write the proportion equation
   1,123.58 : 1,545.39 = 902.04 : x
2. Step 2: Convert to fraction form
   1,123.58/1,545.39 = 902.04/x
3. Step 3: Cross multiply
   1,123.58x = 1,545.39 × 902.04
4. Step 4: Simplify right side
   1,123.58x = 1,394,003.60
5. Step 5: Solve for x
   x = 1,394,003.60/1,123.58
6. Step 6: Final answer
   x = 1,240.68