Finding the Fourth Proportional to 2,255.15, 3,382.83 and 868.03

Step by Step Solution

1. Step 1: Write the proportion equation
   2,255.15 : 3,382.83 = 868.03 : x
2. Step 2: Convert to fraction form
   2,255.15/3,382.83 = 868.03/x
3. Step 3: Cross multiply
   2,255.15x = 3,382.83 × 868.03
4. Step 4: Simplify right side
   2,255.15x = 2,936,389.47
5. Step 5: Solve for x
   x = 2,936,389.47/2,255.15
6. Step 6: Final answer
   x = 1,302.08