Finding the Fourth Proportional to 1,196.90, 1,651.61 and 672.92

Step by Step Solution

1. Step 1: Write the proportion equation
   1,196.90 : 1,651.61 = 672.92 : x
2. Step 2: Convert to fraction form
   1,196.90/1,651.61 = 672.92/x
3. Step 3: Cross multiply
   1,196.90x = 1,651.61 × 672.92
4. Step 4: Simplify right side
   1,196.90x = 1,111,398.04
5. Step 5: Solve for x
   x = 1,111,398.04/1,196.90
6. Step 6: Final answer
   x = 928.56