Finding the Fourth Proportional to 1,255.59, 1,732.61 and 696.01

Step by Step Solution

1. Step 1: Write the proportion equation
   1,255.59 : 1,732.61 = 696.01 : x
2. Step 2: Convert to fraction form
   1,255.59/1,732.61 = 696.01/x
3. Step 3: Cross multiply
   1,255.59x = 1,732.61 × 696.01
4. Step 4: Simplify right side
   1,255.59x = 1,205,913.89
5. Step 5: Solve for x
   x = 1,205,913.89/1,255.59
6. Step 6: Final answer
   x = 960.44