Finding the Fourth Proportional to 2,798.72, 4,197.72 and 949.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,798.72 : 4,197.72 = 949.76 : x
2. Step 2: Convert to fraction form
   2,798.72/4,197.72 = 949.76/x
3. Step 3: Cross multiply
   2,798.72x = 4,197.72 × 949.76
4. Step 4: Simplify right side
   2,798.72x = 3,986,826.55
5. Step 5: Solve for x
   x = 3,986,826.55/2,798.72
6. Step 6: Final answer
   x = 1,424.52