Finding the Fourth Proportional to 2,095.20, 3,142.17 and 862.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,095.20 : 3,142.17 = 862.38 : x
2. Step 2: Convert to fraction form
   2,095.20/3,142.17 = 862.38/x
3. Step 3: Cross multiply
   2,095.20x = 3,142.17 × 862.38
4. Step 4: Simplify right side
   2,095.20x = 2,709,744.56
5. Step 5: Solve for x
   x = 2,709,744.56/2,095.20
6. Step 6: Final answer
   x = 1,293.31