Finding the Fourth Proportional to 1,196.37, 1,650.98 and 672.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,196.37 : 1,650.98 = 672.50 : x
2. Step 2: Convert to fraction form
   1,196.37/1,650.98 = 672.50/x
3. Step 3: Cross multiply
   1,196.37x = 1,650.98 × 672.50
4. Step 4: Simplify right side
   1,196.37x = 1,110,289.86
5. Step 5: Solve for x
   x = 1,110,289.86/1,196.37
6. Step 6: Final answer
   x = 928.05