Finding the Fourth Proportional to 2,076.38, 3,114.27 and 689.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,076.38 : 3,114.27 = 689.69 : x
2. Step 2: Convert to fraction form
   2,076.38/3,114.27 = 689.69/x
3. Step 3: Cross multiply
   2,076.38x = 3,114.27 × 689.69
4. Step 4: Simplify right side
   2,076.38x = 2,147,871.37
5. Step 5: Solve for x
   x = 2,147,871.37/2,076.38
6. Step 6: Final answer
   x = 1,034.43