Finding the Fourth Proportional to 1,196.32, 1,650.99 and 672.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,196.32 : 1,650.99 = 672.31 : x
2. Step 2: Convert to fraction form
   1,196.32/1,650.99 = 672.31/x
3. Step 3: Cross multiply
   1,196.32x = 1,650.99 × 672.31
4. Step 4: Simplify right side
   1,196.32x = 1,109,977.09
5. Step 5: Solve for x
   x = 1,109,977.09/1,196.32
6. Step 6: Final answer
   x = 927.83