Finding the Fourth Proportional to 1,196.71, 1,651.27 and 672.64

Step by Step Solution

1. Step 1: Write the proportion equation
   1,196.71 : 1,651.27 = 672.64 : x
2. Step 2: Convert to fraction form
   1,196.71/1,651.27 = 672.64/x
3. Step 3: Cross multiply
   1,196.71x = 1,651.27 × 672.64
4. Step 4: Simplify right side
   1,196.71x = 1,110,710.25
5. Step 5: Solve for x
   x = 1,110,710.25/1,196.71
6. Step 6: Final answer
   x = 928.14