Finding the Fourth Proportional to 2,401.35, 3,601.89 and 669.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,401.35 : 3,601.89 = 669.98 : x
2. Step 2: Convert to fraction form
   2,401.35/3,601.89 = 669.98/x
3. Step 3: Cross multiply
   2,401.35x = 3,601.89 × 669.98
4. Step 4: Simplify right side
   2,401.35x = 2,413,176.25
5. Step 5: Solve for x
   x = 2,413,176.25/2,401.35
6. Step 6: Final answer
   x = 1,004.92