Finding the Fourth Proportional to 2,095.22, 3,142.94 and 862.81

Step by Step Solution

1. Step 1: Write the proportion equation
   2,095.22 : 3,142.94 = 862.81 : x
2. Step 2: Convert to fraction form
   2,095.22/3,142.94 = 862.81/x
3. Step 3: Cross multiply
   2,095.22x = 3,142.94 × 862.81
4. Step 4: Simplify right side
   2,095.22x = 2,711,747.89
5. Step 5: Solve for x
   x = 2,711,747.89/2,095.22
6. Step 6: Final answer
   x = 1,294.25