Finding the Fourth Proportional to 1,196.41, 1,651.20 and 672.45

Step by Step Solution

1. Step 1: Write the proportion equation
   1,196.41 : 1,651.20 = 672.45 : x
2. Step 2: Convert to fraction form
   1,196.41/1,651.20 = 672.45/x
3. Step 3: Cross multiply
   1,196.41x = 1,651.20 × 672.45
4. Step 4: Simplify right side
   1,196.41x = 1,110,349.44
5. Step 5: Solve for x
   x = 1,110,349.44/1,196.41
6. Step 6: Final answer
   x = 928.07