Finding the Fourth Proportional to 2,600.27, 3,899.98 and 868.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,600.27 : 3,899.98 = 868.89 : x
2. Step 2: Convert to fraction form
   2,600.27/3,899.98 = 868.89/x
3. Step 3: Cross multiply
   2,600.27x = 3,899.98 × 868.89
4. Step 4: Simplify right side
   2,600.27x = 3,388,653.62
5. Step 5: Solve for x
   x = 3,388,653.62/2,600.27
6. Step 6: Final answer
   x = 1,303.19