Finding the Fourth Proportional to 2,749.72, 4,124.52 and 669.73

Step by Step Solution

1. Step 1: Write the proportion equation
   2,749.72 : 4,124.52 = 669.73 : x
2. Step 2: Convert to fraction form
   2,749.72/4,124.52 = 669.73/x
3. Step 3: Cross multiply
   2,749.72x = 4,124.52 × 669.73
4. Step 4: Simplify right side
   2,749.72x = 2,762,314.78
5. Step 5: Solve for x
   x = 2,762,314.78/2,749.72
6. Step 6: Final answer
   x = 1,004.58