Finding the Fourth Proportional to 1,196.31, 1,650.92 and 698.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,196.31 : 1,650.92 = 698.86 : x
2. Step 2: Convert to fraction form
   1,196.31/1,650.92 = 698.86/x
3. Step 3: Cross multiply
   1,196.31x = 1,650.92 × 698.86
4. Step 4: Simplify right side
   1,196.31x = 1,153,760.52
5. Step 5: Solve for x
   x = 1,153,760.52/1,196.31
6. Step 6: Final answer
   x = 964.43