Finding the Fourth Proportional to 1,196.19, 1,650.85 and 698.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,196.19 : 1,650.85 = 698.72 : x
2. Step 2: Convert to fraction form
   1,196.19/1,650.85 = 698.72/x
3. Step 3: Cross multiply
   1,196.19x = 1,650.85 × 698.72
4. Step 4: Simplify right side
   1,196.19x = 1,153,471.91
5. Step 5: Solve for x
   x = 1,153,471.91/1,196.19
6. Step 6: Final answer
   x = 964.29