Finding the Fourth Proportional to 2,208.52, 3,313.56 and 669.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,208.52 : 3,313.56 = 669.52 : x
2. Step 2: Convert to fraction form
   2,208.52/3,313.56 = 669.52/x
3. Step 3: Cross multiply
   2,208.52x = 3,313.56 × 669.52
4. Step 4: Simplify right side
   2,208.52x = 2,218,494.69
5. Step 5: Solve for x
   x = 2,218,494.69/2,208.52
6. Step 6: Final answer
   x = 1,004.52