Finding the Fourth Proportional to 2,078.18, 3,116.40 and 966.92

Step by Step Solution

1. Step 1: Write the proportion equation
   2,078.18 : 3,116.40 = 966.92 : x
2. Step 2: Convert to fraction form
   2,078.18/3,116.40 = 966.92/x
3. Step 3: Cross multiply
   2,078.18x = 3,116.40 × 966.92
4. Step 4: Simplify right side
   2,078.18x = 3,013,309.49
5. Step 5: Solve for x
   x = 3,013,309.49/2,078.18
6. Step 6: Final answer
   x = 1,449.98