Finding the Fourth Proportional to 1,255.69, 1,732.86 and 696.17

Step by Step Solution

1. Step 1: Write the proportion equation
   1,255.69 : 1,732.86 = 696.17 : x
2. Step 2: Convert to fraction form
   1,255.69/1,732.86 = 696.17/x
3. Step 3: Cross multiply
   1,255.69x = 1,732.86 × 696.17
4. Step 4: Simplify right side
   1,255.69x = 1,206,366.89
5. Step 5: Solve for x
   x = 1,206,366.89/1,255.69
6. Step 6: Final answer
   x = 960.72