Finding the Fourth Proportional to 2,095.59, 3,142.31 and 862.77

Step by Step Solution

1. Step 1: Write the proportion equation
   2,095.59 : 3,142.31 = 862.77 : x
2. Step 2: Convert to fraction form
   2,095.59/3,142.31 = 862.77/x
3. Step 3: Cross multiply
   2,095.59x = 3,142.31 × 862.77
4. Step 4: Simplify right side
   2,095.59x = 2,711,086.48
5. Step 5: Solve for x
   x = 2,711,086.48/2,095.59
6. Step 6: Final answer
   x = 1,293.71