Finding the Fourth Proportional to 2,797.98, 4,196.88 and 850.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,797.98 : 4,196.88 = 850.20 : x
2. Step 2: Convert to fraction form
   2,797.98/4,196.88 = 850.20/x
3. Step 3: Cross multiply
   2,797.98x = 4,196.88 × 850.20
4. Step 4: Simplify right side
   2,797.98x = 3,568,187.38
5. Step 5: Solve for x
   x = 3,568,187.38/2,797.98
6. Step 6: Final answer
   x = 1,275.27