Finding the Fourth Proportional to 2,096.80, 3,145.60 and 799.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,096.80 : 3,145.60 = 799.18 : x
2. Step 2: Convert to fraction form
   2,096.80/3,145.60 = 799.18/x
3. Step 3: Cross multiply
   2,096.80x = 3,145.60 × 799.18
4. Step 4: Simplify right side
   2,096.80x = 2,513,900.61
5. Step 5: Solve for x
   x = 2,513,900.61/2,096.80
6. Step 6: Final answer
   x = 1,198.92