Finding the Fourth Proportional to 1,196.74, 1,651.48 and 672.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,196.74 : 1,651.48 = 672.76 : x
2. Step 2: Convert to fraction form
   1,196.74/1,651.48 = 672.76/x
3. Step 3: Cross multiply
   1,196.74x = 1,651.48 × 672.76
4. Step 4: Simplify right side
   1,196.74x = 1,111,049.68
5. Step 5: Solve for x
   x = 1,111,049.68/1,196.74
6. Step 6: Final answer
   x = 928.40