Finding the Fourth Proportional to 2,429.33, 3,643.07 and 869.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,429.33 : 3,643.07 = 869.05 : x
2. Step 2: Convert to fraction form
   2,429.33/3,643.07 = 869.05/x
3. Step 3: Cross multiply
   2,429.33x = 3,643.07 × 869.05
4. Step 4: Simplify right side
   2,429.33x = 3,166,009.98
5. Step 5: Solve for x
   x = 3,166,009.98/2,429.33
6. Step 6: Final answer
   x = 1,303.24