Finding the Fourth Proportional to 2,329.30, 3,495.12 and 868.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,329.30 : 3,495.12 = 868.78 : x
2. Step 2: Convert to fraction form
   2,329.30/3,495.12 = 868.78/x
3. Step 3: Cross multiply
   2,329.30x = 3,495.12 × 868.78
4. Step 4: Simplify right side
   2,329.30x = 3,036,490.35
5. Step 5: Solve for x
   x = 3,036,490.35/2,329.30
6. Step 6: Final answer
   x = 1,303.61