Finding the Fourth Proportional to 1,195.83, 1,650.42 and 698.40

Step by Step Solution

1. Step 1: Write the proportion equation
   1,195.83 : 1,650.42 = 698.40 : x
2. Step 2: Convert to fraction form
   1,195.83/1,650.42 = 698.40/x
3. Step 3: Cross multiply
   1,195.83x = 1,650.42 × 698.40
4. Step 4: Simplify right side
   1,195.83x = 1,152,653.33
5. Step 5: Solve for x
   x = 1,152,653.33/1,195.83
6. Step 6: Final answer
   x = 963.89