Finding the Fourth Proportional to 2,425.12, 3,636.42 and 864.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,425.12 : 3,636.42 = 864.52 : x
2. Step 2: Convert to fraction form
   2,425.12/3,636.42 = 864.52/x
3. Step 3: Cross multiply
   2,425.12x = 3,636.42 × 864.52
4. Step 4: Simplify right side
   2,425.12x = 3,143,757.82
5. Step 5: Solve for x
   x = 3,143,757.82/2,425.12
6. Step 6: Final answer
   x = 1,296.33