Finding the Fourth Proportional to 1,768.49, 2,651.12 and 672.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,768.49 : 2,651.12 = 672.83 : x
2. Step 2: Convert to fraction form
   1,768.49/2,651.12 = 672.83/x
3. Step 3: Cross multiply
   1,768.49x = 2,651.12 × 672.83
4. Step 4: Simplify right side
   1,768.49x = 1,783,749.71
5. Step 5: Solve for x
   x = 1,783,749.71/1,768.49
6. Step 6: Final answer
   x = 1,008.63