Finding the Fourth Proportional to 1,196.28, 1,650.72 and 672.24

Step by Step Solution

1. Step 1: Write the proportion equation
   1,196.28 : 1,650.72 = 672.24 : x
2. Step 2: Convert to fraction form
   1,196.28/1,650.72 = 672.24/x
3. Step 3: Cross multiply
   1,196.28x = 1,650.72 × 672.24
4. Step 4: Simplify right side
   1,196.28x = 1,109,680.01
5. Step 5: Solve for x
   x = 1,109,680.01/1,196.28
6. Step 6: Final answer
   x = 927.61