Finding the Fourth Proportional to 2,451.89, 3,382.11 and 2,287.87

Step by Step Solution

1. Step 1: Write the proportion equation
   2,451.89 : 3,382.11 = 2,287.87 : x
2. Step 2: Convert to fraction form
   2,451.89/3,382.11 = 2,287.87/x
3. Step 3: Cross multiply
   2,451.89x = 3,382.11 × 2,287.87
4. Step 4: Simplify right side
   2,451.89x = 7,737,819.55
5. Step 5: Solve for x
   x = 7,737,819.55/2,451.89
6. Step 6: Final answer
   x = 3,155.86