Finding the Fourth Proportional to 2,546.56, 3,818.82 and 902.21

Step by Step Solution

1. Step 1: Write the proportion equation
   2,546.56 : 3,818.82 = 902.21 : x
2. Step 2: Convert to fraction form
   2,546.56/3,818.82 = 902.21/x
3. Step 3: Cross multiply
   2,546.56x = 3,818.82 × 902.21
4. Step 4: Simplify right side
   2,546.56x = 3,445,391.57
5. Step 5: Solve for x
   x = 3,445,391.57/2,546.56
6. Step 6: Final answer
   x = 1,352.96