Finding the Fourth Proportional to 3,938.31, 5,892.88 and 2,899.08

Step by Step Solution

1. Step 1: Write the proportion equation
   3,938.31 : 5,892.88 = 2,899.08 : x
2. Step 2: Convert to fraction form
   3,938.31/5,892.88 = 2,899.08/x
3. Step 3: Cross multiply
   3,938.31x = 5,892.88 × 2,899.08
4. Step 4: Simplify right side
   3,938.31x = 17,083,908.57
5. Step 5: Solve for x
   x = 17,083,908.57/3,938.31
6. Step 6: Final answer
   x = 4,337.88