Finding the Fourth Proportional to 2,096.90, 3,145.81 and 798.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,096.90 : 3,145.81 = 798.38 : x
2. Step 2: Convert to fraction form
   2,096.90/3,145.81 = 798.38/x
3. Step 3: Cross multiply
   2,096.90x = 3,145.81 × 798.38
4. Step 4: Simplify right side
   2,096.90x = 2,511,551.79
5. Step 5: Solve for x
   x = 2,511,551.79/2,096.90
6. Step 6: Final answer
   x = 1,197.75