Finding the Fourth Proportional to 2,096.72, 3,143.28 and 799.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,096.72 : 3,143.28 = 799.12 : x
2. Step 2: Convert to fraction form
   2,096.72/3,143.28 = 799.12/x
3. Step 3: Cross multiply
   2,096.72x = 3,143.28 × 799.12
4. Step 4: Simplify right side
   2,096.72x = 2,511,857.91
5. Step 5: Solve for x
   x = 2,511,857.91/2,096.72
6. Step 6: Final answer
   x = 1,197.99