Finding the Fourth Proportional to 3,898.18, 5,380.17 and 2,304.76

Step by Step Solution

1. Step 1: Write the proportion equation
   3,898.18 : 5,380.17 = 2,304.76 : x
2. Step 2: Convert to fraction form
   3,898.18/5,380.17 = 2,304.76/x
3. Step 3: Cross multiply
   3,898.18x = 5,380.17 × 2,304.76
4. Step 4: Simplify right side
   3,898.18x = 12,400,000.61
5. Step 5: Solve for x
   x = 12,400,000.61/3,898.18
6. Step 6: Final answer
   x = 3,180.97