Finding the Fourth Proportional to 2,331.55, 3,496.42 and 869.91

Step by Step Solution

1. Step 1: Write the proportion equation
   2,331.55 : 3,496.42 = 869.91 : x
2. Step 2: Convert to fraction form
   2,331.55/3,496.42 = 869.91/x
3. Step 3: Cross multiply
   2,331.55x = 3,496.42 × 869.91
4. Step 4: Simplify right side
   2,331.55x = 3,041,570.72
5. Step 5: Solve for x
   x = 3,041,570.72/2,331.55
6. Step 6: Final answer
   x = 1,304.53