Finding the Fourth Proportional to 3,738.56, 5,608.17 and 965.21

Step by Step Solution

1. Step 1: Write the proportion equation
   3,738.56 : 5,608.17 = 965.21 : x
2. Step 2: Convert to fraction form
   3,738.56/5,608.17 = 965.21/x
3. Step 3: Cross multiply
   3,738.56x = 5,608.17 × 965.21
4. Step 4: Simplify right side
   3,738.56x = 5,413,075.79
5. Step 5: Solve for x
   x = 5,413,075.79/3,738.56
6. Step 6: Final answer
   x = 1,447.90