Finding the Fourth Proportional to 1,196.28, 1,650.84 and 672.36

Step by Step Solution

1. Step 1: Write the proportion equation
   1,196.28 : 1,650.84 = 672.36 : x
2. Step 2: Convert to fraction form
   1,196.28/1,650.84 = 672.36/x
3. Step 3: Cross multiply
   1,196.28x = 1,650.84 × 672.36
4. Step 4: Simplify right side
   1,196.28x = 1,109,958.78
5. Step 5: Solve for x
   x = 1,109,958.78/1,196.28
6. Step 6: Final answer
   x = 927.84