Finding the Fourth Proportional to 2,076.02, 3,114.47 and 689.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,076.02 : 3,114.47 = 689.28 : x
2. Step 2: Convert to fraction form
   2,076.02/3,114.47 = 689.28/x
3. Step 3: Cross multiply
   2,076.02x = 3,114.47 × 689.28
4. Step 4: Simplify right side
   2,076.02x = 2,146,741.88
5. Step 5: Solve for x
   x = 2,146,741.88/2,076.02
6. Step 6: Final answer
   x = 1,034.07