Finding the Fourth Proportional to 3,938.22, 5,900.04 and 2,839.86

Step by Step Solution

1. Step 1: Write the proportion equation
   3,938.22 : 5,900.04 = 2,839.86 : x
2. Step 2: Convert to fraction form
   3,938.22/5,900.04 = 2,839.86/x
3. Step 3: Cross multiply
   3,938.22x = 5,900.04 × 2,839.86
4. Step 4: Simplify right side
   3,938.22x = 16,755,287.59
5. Step 5: Solve for x
   x = 16,755,287.59/3,938.22
6. Step 6: Final answer
   x = 4,254.53