Finding the Fourth Proportional to 2,799.72, 4,200.12 and 950.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,799.72 : 4,200.12 = 950.76 : x
2. Step 2: Convert to fraction form
   2,799.72/4,200.12 = 950.76/x
3. Step 3: Cross multiply
   2,799.72x = 4,200.12 × 950.76
4. Step 4: Simplify right side
   2,799.72x = 3,993,306.09
5. Step 5: Solve for x
   x = 3,993,306.09/2,799.72
6. Step 6: Final answer
   x = 1,426.32