Finding the Fourth Proportional to 2,168.27, 3,252.55 and 869.74

Step by Step Solution

1. Step 1: Write the proportion equation
   2,168.27 : 3,252.55 = 869.74 : x
2. Step 2: Convert to fraction form
   2,168.27/3,252.55 = 869.74/x
3. Step 3: Cross multiply
   2,168.27x = 3,252.55 × 869.74
4. Step 4: Simplify right side
   2,168.27x = 2,828,856.57
5. Step 5: Solve for x
   x = 2,828,856.57/2,168.27
6. Step 6: Final answer
   x = 1,304.66