Finding the Fourth Proportional to 2,007.72, 3,008.88 and 1,019.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,007.72 : 3,008.88 = 1,019.52 : x
2. Step 2: Convert to fraction form
   2,007.72/3,008.88 = 1,019.52/x
3. Step 3: Cross multiply
   2,007.72x = 3,008.88 × 1,019.52
4. Step 4: Simplify right side
   2,007.72x = 3,067,613.34
5. Step 5: Solve for x
   x = 3,067,613.34/2,007.72
6. Step 6: Final answer
   x = 1,527.91