Finding the Fourth Proportional to 3,900.33, 5,382.41 and 2,387.39

Step by Step Solution

1. Step 1: Write the proportion equation
   3,900.33 : 5,382.41 = 2,387.39 : x
2. Step 2: Convert to fraction form
   3,900.33/5,382.41 = 2,387.39/x
3. Step 3: Cross multiply
   3,900.33x = 5,382.41 × 2,387.39
4. Step 4: Simplify right side
   3,900.33x = 12,849,872.96
5. Step 5: Solve for x
   x = 12,849,872.96/3,900.33
6. Step 6: Final answer
   x = 3,294.56