Finding the Fourth Proportional to 1,196.58, 1,651.26 and 672.57

Step by Step Solution

1. Step 1: Write the proportion equation
   1,196.58 : 1,651.26 = 672.57 : x
2. Step 2: Convert to fraction form
   1,196.58/1,651.26 = 672.57/x
3. Step 3: Cross multiply
   1,196.58x = 1,651.26 × 672.57
4. Step 4: Simplify right side
   1,196.58x = 1,110,587.94
5. Step 5: Solve for x
   x = 1,110,587.94/1,196.58
6. Step 6: Final answer
   x = 928.14