Finding the Fourth Proportional to 2,095.72, 3,143.02 and 862.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,095.72 : 3,143.02 = 862.76 : x
2. Step 2: Convert to fraction form
   2,095.72/3,143.02 = 862.76/x
3. Step 3: Cross multiply
   2,095.72x = 3,143.02 × 862.76
4. Step 4: Simplify right side
   2,095.72x = 2,711,671.94
5. Step 5: Solve for x
   x = 2,711,671.94/2,095.72
6. Step 6: Final answer
   x = 1,293.91