Finding the Fourth Proportional to 1,196.66, 1,651.34 and 672.70

Step by Step Solution

1. Step 1: Write the proportion equation
   1,196.66 : 1,651.34 = 672.70 : x
2. Step 2: Convert to fraction form
   1,196.66/1,651.34 = 672.70/x
3. Step 3: Cross multiply
   1,196.66x = 1,651.34 × 672.70
4. Step 4: Simplify right side
   1,196.66x = 1,110,856.42
5. Step 5: Solve for x
   x = 1,110,856.42/1,196.66
6. Step 6: Final answer
   x = 928.30