Finding the Fourth Proportional to 2,096.20, 3,143.67 and 863.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,096.20 : 3,143.67 = 863.38 : x
2. Step 2: Convert to fraction form
   2,096.20/3,143.67 = 863.38/x
3. Step 3: Cross multiply
   2,096.20x = 3,143.67 × 863.38
4. Step 4: Simplify right side
   2,096.20x = 2,714,181.80
5. Step 5: Solve for x
   x = 2,714,181.80/2,096.20
6. Step 6: Final answer
   x = 1,294.81