Finding the Fourth Proportional to 1,256.32, 1,733.72 and 696.81

Step by Step Solution

1. Step 1: Write the proportion equation
   1,256.32 : 1,733.72 = 696.81 : x
2. Step 2: Convert to fraction form
   1,256.32/1,733.72 = 696.81/x
3. Step 3: Cross multiply
   1,256.32x = 1,733.72 × 696.81
4. Step 4: Simplify right side
   1,256.32x = 1,208,073.43
5. Step 5: Solve for x
   x = 1,208,073.43/1,256.32
6. Step 6: Final answer
   x = 961.60