Finding the Fourth Proportional to 2,620.62, 3,616.38 and 1,441.67

Step by Step Solution

1. Step 1: Write the proportion equation
   2,620.62 : 3,616.38 = 1,441.67 : x
2. Step 2: Convert to fraction form
   2,620.62/3,616.38 = 1,441.67/x
3. Step 3: Cross multiply
   2,620.62x = 3,616.38 × 1,441.67
4. Step 4: Simplify right side
   2,620.62x = 5,213,608.47
5. Step 5: Solve for x
   x = 5,213,608.47/2,620.62
6. Step 6: Final answer
   x = 1,989.46