Finding the Fourth Proportional to 964.71, 1,329.37 and 698.69

Step by Step Solution

1. Step 1: Write the proportion equation
   964.71 : 1,329.37 = 698.69 : x
2. Step 2: Convert to fraction form
   964.71/1,329.37 = 698.69/x
3. Step 3: Cross multiply
   964.71x = 1,329.37 × 698.69
4. Step 4: Simplify right side
   964.71x = 928,819.10
5. Step 5: Solve for x
   x = 928,819.10/964.71
6. Step 6: Final answer
   x = 962.80