Finding the Fourth Proportional to 2,096.88, 3,145.58 and 798.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,096.88 : 3,145.58 = 798.72 : x
2. Step 2: Convert to fraction form
   2,096.88/3,145.58 = 798.72/x
3. Step 3: Cross multiply
   2,096.88x = 3,145.58 × 798.72
4. Step 4: Simplify right side
   2,096.88x = 2,512,437.66
5. Step 5: Solve for x
   x = 2,512,437.66/2,096.88
6. Step 6: Final answer
   x = 1,198.18