Finding the Fourth Proportional to 1,196.09, 1,650.68 and 672.11

Step by Step Solution

1. Step 1: Write the proportion equation
   1,196.09 : 1,650.68 = 672.11 : x
2. Step 2: Convert to fraction form
   1,196.09/1,650.68 = 672.11/x
3. Step 3: Cross multiply
   1,196.09x = 1,650.68 × 672.11
4. Step 4: Simplify right side
   1,196.09x = 1,109,438.53
5. Step 5: Solve for x
   x = 1,109,438.53/1,196.09
6. Step 6: Final answer
   x = 927.55