Finding the Fourth Proportional to 2,699.38, 4,049.69 and 850.49

Step by Step Solution

1. Step 1: Write the proportion equation
   2,699.38 : 4,049.69 = 850.49 : x
2. Step 2: Convert to fraction form
   2,699.38/4,049.69 = 850.49/x
3. Step 3: Cross multiply
   2,699.38x = 4,049.69 × 850.49
4. Step 4: Simplify right side
   2,699.38x = 3,444,196.35
5. Step 5: Solve for x
   x = 3,444,196.35/2,699.38
6. Step 6: Final answer
   x = 1,275.92