Finding the Fourth Proportional to 3,900.88, 5,863.64 and 3,359.61

Step by Step Solution

1. Step 1: Write the proportion equation
   3,900.88 : 5,863.64 = 3,359.61 : x
2. Step 2: Convert to fraction form
   3,900.88/5,863.64 = 3,359.61/x
3. Step 3: Cross multiply
   3,900.88x = 5,863.64 × 3,359.61
4. Step 4: Simplify right side
   3,900.88x = 19,699,543.58
5. Step 5: Solve for x
   x = 19,699,543.58/3,900.88
6. Step 6: Final answer
   x = 5,050.03