Finding the Fourth Proportional to 1,196.34, 1,650.78 and 672.36

Step by Step Solution

1. Step 1: Write the proportion equation
   1,196.34 : 1,650.78 = 672.36 : x
2. Step 2: Convert to fraction form
   1,196.34/1,650.78 = 672.36/x
3. Step 3: Cross multiply
   1,196.34x = 1,650.78 × 672.36
4. Step 4: Simplify right side
   1,196.34x = 1,109,918.44
5. Step 5: Solve for x
   x = 1,109,918.44/1,196.34
6. Step 6: Final answer
   x = 927.76