Finding the Fourth Proportional to 2,429.25, 3,643.48 and 868.99

Step by Step Solution

1. Step 1: Write the proportion equation
   2,429.25 : 3,643.48 = 868.99 : x
2. Step 2: Convert to fraction form
   2,429.25/3,643.48 = 868.99/x
3. Step 3: Cross multiply
   2,429.25x = 3,643.48 × 868.99
4. Step 4: Simplify right side
   2,429.25x = 3,166,129.47
5. Step 5: Solve for x
   x = 3,166,129.47/2,429.25
6. Step 6: Final answer
   x = 1,303.34