Finding the Fourth Proportional to 2,429.14, 3,642.68 and 869.55

Step by Step Solution

1. Step 1: Write the proportion equation
   2,429.14 : 3,642.68 = 869.55 : x
2. Step 2: Convert to fraction form
   2,429.14/3,642.68 = 869.55/x
3. Step 3: Cross multiply
   2,429.14x = 3,642.68 × 869.55
4. Step 4: Simplify right side
   2,429.14x = 3,167,469.83
5. Step 5: Solve for x
   x = 3,167,469.83/2,429.14
6. Step 6: Final answer
   x = 1,303.95