Finding the Fourth Proportional to 2,622.38, 3,618.88 and 1,443.53

Step by Step Solution

1. Step 1: Write the proportion equation
   2,622.38 : 3,618.88 = 1,443.53 : x
2. Step 2: Convert to fraction form
   2,622.38/3,618.88 = 1,443.53/x
3. Step 3: Cross multiply
   2,622.38x = 3,618.88 × 1,443.53
4. Step 4: Simplify right side
   2,622.38x = 5,223,967.28
5. Step 5: Solve for x
   x = 5,223,967.28/2,622.38
6. Step 6: Final answer
   x = 1,992.07