Finding the Fourth Proportional to 2,255.31, 3,382.02 and 868.37

Step by Step Solution

1. Step 1: Write the proportion equation
   2,255.31 : 3,382.02 = 868.37 : x
2. Step 2: Convert to fraction form
   2,255.31/3,382.02 = 868.37/x
3. Step 3: Cross multiply
   2,255.31x = 3,382.02 × 868.37
4. Step 4: Simplify right side
   2,255.31x = 2,936,827.80
5. Step 5: Solve for x
   x = 2,936,827.80/2,255.31
6. Step 6: Final answer
   x = 1,302.18