Finding the Fourth Proportional to 1,196.12, 1,650.76 and 698.70

Step by Step Solution

1. Step 1: Write the proportion equation
   1,196.12 : 1,650.76 = 698.70 : x
2. Step 2: Convert to fraction form
   1,196.12/1,650.76 = 698.70/x
3. Step 3: Cross multiply
   1,196.12x = 1,650.76 × 698.70
4. Step 4: Simplify right side
   1,196.12x = 1,153,386.01
5. Step 5: Solve for x
   x = 1,153,386.01/1,196.12
6. Step 6: Final answer
   x = 964.27