Finding the Fourth Proportional to 2,622.05, 3,618.41 and 1,443.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,622.05 : 3,618.41 = 1,443.10 : x
2. Step 2: Convert to fraction form
   2,622.05/3,618.41 = 1,443.10/x
3. Step 3: Cross multiply
   2,622.05x = 3,618.41 × 1,443.10
4. Step 4: Simplify right side
   2,622.05x = 5,221,711.21
5. Step 5: Solve for x
   x = 5,221,711.21/2,622.05
6. Step 6: Final answer
   x = 1,991.46