Finding the Fourth Proportional to 2,546.12, 3,818.63 and 902.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,546.12 : 3,818.63 = 902.72 : x
2. Step 2: Convert to fraction form
   2,546.12/3,818.63 = 902.72/x
3. Step 3: Cross multiply
   2,546.12x = 3,818.63 × 902.72
4. Step 4: Simplify right side
   2,546.12x = 3,447,153.67
5. Step 5: Solve for x
   x = 3,447,153.67/2,546.12
6. Step 6: Final answer
   x = 1,353.88