Finding the Fourth Proportional to 2,545.62, 3,818.57 and 902.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,545.62 : 3,818.57 = 902.34 : x
2. Step 2: Convert to fraction form
   2,545.62/3,818.57 = 902.34/x
3. Step 3: Cross multiply
   2,545.62x = 3,818.57 × 902.34
4. Step 4: Simplify right side
   2,545.62x = 3,445,643.94
5. Step 5: Solve for x
   x = 3,445,643.94/2,545.62
6. Step 6: Final answer
   x = 1,353.56