Finding the Fourth Proportional to 2,620.28, 3,616.04 and 1,441.43

Step by Step Solution

1. Step 1: Write the proportion equation
   2,620.28 : 3,616.04 = 1,441.43 : x
2. Step 2: Convert to fraction form
   2,620.28/3,616.04 = 1,441.43/x
3. Step 3: Cross multiply
   2,620.28x = 3,616.04 × 1,441.43
4. Step 4: Simplify right side
   2,620.28x = 5,212,267.62
5. Step 5: Solve for x
   x = 5,212,267.62/2,620.28
6. Step 6: Final answer
   x = 1,989.20