Finding the Fourth Proportional to 2,546.43, 3,818.78 and 902.73

Step by Step Solution

1. Step 1: Write the proportion equation
   2,546.43 : 3,818.78 = 902.73 : x
2. Step 2: Convert to fraction form
   2,546.43/3,818.78 = 902.73/x
3. Step 3: Cross multiply
   2,546.43x = 3,818.78 × 902.73
4. Step 4: Simplify right side
   2,546.43x = 3,447,327.27
5. Step 5: Solve for x
   x = 3,447,327.27/2,546.43
6. Step 6: Final answer
   x = 1,353.79