Finding the Fourth Proportional to 2,622.10, 3,618.50 and 1,443.17

Step by Step Solution

1. Step 1: Write the proportion equation
   2,622.10 : 3,618.50 = 1,443.17 : x
2. Step 2: Convert to fraction form
   2,622.10/3,618.50 = 1,443.17/x
3. Step 3: Cross multiply
   2,622.10x = 3,618.50 × 1,443.17
4. Step 4: Simplify right side
   2,622.10x = 5,222,103.43
5. Step 5: Solve for x
   x = 5,222,103.43/2,622.10
6. Step 6: Final answer
   x = 1,991.58