Finding the Fourth Proportional to 2,076.92, 3,114.50 and 689.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,076.92 : 3,114.50 = 689.89 : x
2. Step 2: Convert to fraction form
   2,076.92/3,114.50 = 689.89/x
3. Step 3: Cross multiply
   2,076.92x = 3,114.50 × 689.89
4. Step 4: Simplify right side
   2,076.92x = 2,148,643.38
5. Step 5: Solve for x
   x = 2,148,643.38/2,076.92
6. Step 6: Final answer
   x = 1,034.53