Finding the Fourth Proportional to 2,075.94, 3,114.81 and 689.46

Step by Step Solution

1. Step 1: Write the proportion equation
   2,075.94 : 3,114.81 = 689.46 : x
2. Step 2: Convert to fraction form
   2,075.94/3,114.81 = 689.46/x
3. Step 3: Cross multiply
   2,075.94x = 3,114.81 × 689.46
4. Step 4: Simplify right side
   2,075.94x = 2,147,536.90
5. Step 5: Solve for x
   x = 2,147,536.90/2,075.94
6. Step 6: Final answer
   x = 1,034.49