Finding the Fourth Proportional to 1,123.95, 1,545.91 and 902.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,123.95 : 1,545.91 = 902.42 : x
2. Step 2: Convert to fraction form
   1,123.95/1,545.91 = 902.42/x
3. Step 3: Cross multiply
   1,123.95x = 1,545.91 × 902.42
4. Step 4: Simplify right side
   1,123.95x = 1,395,060.10
5. Step 5: Solve for x
   x = 1,395,060.10/1,123.95
6. Step 6: Final answer
   x = 1,241.21