Finding the Fourth Proportional to 2,040.16, 3,060.16 and 869.57

Step by Step Solution

1. Step 1: Write the proportion equation
   2,040.16 : 3,060.16 = 869.57 : x
2. Step 2: Convert to fraction form
   2,040.16/3,060.16 = 869.57/x
3. Step 3: Cross multiply
   2,040.16x = 3,060.16 × 869.57
4. Step 4: Simplify right side
   2,040.16x = 2,661,023.33
5. Step 5: Solve for x
   x = 2,661,023.33/2,040.16
6. Step 6: Final answer
   x = 1,304.32