Finding the Fourth Proportional to 1,196.63, 1,651.44 and 672.71

Step by Step Solution

1. Step 1: Write the proportion equation
   1,196.63 : 1,651.44 = 672.71 : x
2. Step 2: Convert to fraction form
   1,196.63/1,651.44 = 672.71/x
3. Step 3: Cross multiply
   1,196.63x = 1,651.44 × 672.71
4. Step 4: Simplify right side
   1,196.63x = 1,110,940.20
5. Step 5: Solve for x
   x = 1,110,940.20/1,196.63
6. Step 6: Final answer
   x = 928.39