Finding the Fourth Proportional to 1,062.46, 1,465.83 and 689.91

Step by Step Solution

1. Step 1: Write the proportion equation
   1,062.46 : 1,465.83 = 689.91 : x
2. Step 2: Convert to fraction form
   1,062.46/1,465.83 = 689.91/x
3. Step 3: Cross multiply
   1,062.46x = 1,465.83 × 689.91
4. Step 4: Simplify right side
   1,062.46x = 1,011,290.78
5. Step 5: Solve for x
   x = 1,011,290.78/1,062.46
6. Step 6: Final answer
   x = 951.84