Finding the Fourth Proportional to 1,196.83, 1,651.67 and 672.87

Step by Step Solution

1. Step 1: Write the proportion equation
   1,196.83 : 1,651.67 = 672.87 : x
2. Step 2: Convert to fraction form
   1,196.83/1,651.67 = 672.87/x
3. Step 3: Cross multiply
   1,196.83x = 1,651.67 × 672.87
4. Step 4: Simplify right side
   1,196.83x = 1,111,359.19
5. Step 5: Solve for x
   x = 1,111,359.19/1,196.83
6. Step 6: Final answer
   x = 928.59