Finding the Fourth Proportional to 2,699.38, 4,049.34 and 850.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,699.38 : 4,049.34 = 850.42 : x
2. Step 2: Convert to fraction form
   2,699.38/4,049.34 = 850.42/x
3. Step 3: Cross multiply
   2,699.38x = 4,049.34 × 850.42
4. Step 4: Simplify right side
   2,699.38x = 3,443,639.72
5. Step 5: Solve for x
   x = 3,443,639.72/2,699.38
6. Step 6: Final answer
   x = 1,275.72