Finding the Fourth Proportional to 2,622.22, 3,618.36 and 1,443.22

Step by Step Solution

1. Step 1: Write the proportion equation
   2,622.22 : 3,618.36 = 1,443.22 : x
2. Step 2: Convert to fraction form
   2,622.22/3,618.36 = 1,443.22/x
3. Step 3: Cross multiply
   2,622.22x = 3,618.36 × 1,443.22
4. Step 4: Simplify right side
   2,622.22x = 5,222,089.52
5. Step 5: Solve for x
   x = 5,222,089.52/2,622.22
6. Step 6: Final answer
   x = 1,991.48