Finding the Fourth Proportional to 748.73, 1,031.69 and 696.83

Step by Step Solution

1. Step 1: Write the proportion equation
   748.73 : 1,031.69 = 696.83 : x
2. Step 2: Convert to fraction form
   748.73/1,031.69 = 696.83/x
3. Step 3: Cross multiply
   748.73x = 1,031.69 × 696.83
4. Step 4: Simplify right side
   748.73x = 718,903.90
5. Step 5: Solve for x
   x = 718,903.90/748.73
6. Step 6: Final answer
   x = 960.17