Finding the Fourth Proportional to 2,077.19, 3,114.25 and 689.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,077.19 : 3,114.25 = 689.72 : x
2. Step 2: Convert to fraction form
   2,077.19/3,114.25 = 689.72/x
3. Step 3: Cross multiply
   2,077.19x = 3,114.25 × 689.72
4. Step 4: Simplify right side
   2,077.19x = 2,147,943.21
5. Step 5: Solve for x
   x = 2,147,943.21/2,077.19
6. Step 6: Final answer
   x = 1,034.06