Finding the Fourth Proportional to 1,196.59, 1,651.27 and 665.47

Step by Step Solution

1. Step 1: Write the proportion equation
   1,196.59 : 1,651.27 = 665.47 : x
2. Step 2: Convert to fraction form
   1,196.59/1,651.27 = 665.47/x
3. Step 3: Cross multiply
   1,196.59x = 1,651.27 × 665.47
4. Step 4: Simplify right side
   1,196.59x = 1,098,870.65
5. Step 5: Solve for x
   x = 1,098,870.65/1,196.59
6. Step 6: Final answer
   x = 918.34