Finding the Fourth Proportional to 2,007.23, 3,011.13 and 672.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,007.23 : 3,011.13 = 672.59 : x
2. Step 2: Convert to fraction form
   2,007.23/3,011.13 = 672.59/x
3. Step 3: Cross multiply
   2,007.23x = 3,011.13 × 672.59
4. Step 4: Simplify right side
   2,007.23x = 2,025,255.93
5. Step 5: Solve for x
   x = 2,025,255.93/2,007.23
6. Step 6: Final answer
   x = 1,008.98