Finding the Fourth Proportional to 2,798.12, 4,196.48 and 949.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,798.12 : 4,196.48 = 949.20 : x
2. Step 2: Convert to fraction form
   2,798.12/4,196.48 = 949.20/x
3. Step 3: Cross multiply
   2,798.12x = 4,196.48 × 949.20
4. Step 4: Simplify right side
   2,798.12x = 3,983,298.82
5. Step 5: Solve for x
   x = 3,983,298.82/2,798.12
6. Step 6: Final answer
   x = 1,423.56