Finding the Fourth Proportional to 2,599.52, 3,899.34 and 868.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,599.52 : 3,899.34 = 868.16 : x
2. Step 2: Convert to fraction form
   2,599.52/3,899.34 = 868.16/x
3. Step 3: Cross multiply
   2,599.52x = 3,899.34 × 868.16
4. Step 4: Simplify right side
   2,599.52x = 3,385,251.01
5. Step 5: Solve for x
   x = 3,385,251.01/2,599.52
6. Step 6: Final answer
   x = 1,302.26