Finding the Fourth Proportional to 2,401.32, 3,601.56 and 669.60

Step by Step Solution

1. Step 1: Write the proportion equation
   2,401.32 : 3,601.56 = 669.60 : x
2. Step 2: Convert to fraction form
   2,401.32/3,601.56 = 669.60/x
3. Step 3: Cross multiply
   2,401.32x = 3,601.56 × 669.60
4. Step 4: Simplify right side
   2,401.32x = 2,411,604.58
5. Step 5: Solve for x
   x = 2,411,604.58/2,401.32
6. Step 6: Final answer
   x = 1,004.28