Finding the Fourth Proportional to 2,622.68, 3,619.27 and 1,443.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,622.68 : 3,619.27 = 1,443.72 : x
2. Step 2: Convert to fraction form
   2,622.68/3,619.27 = 1,443.72/x
3. Step 3: Cross multiply
   2,622.68x = 3,619.27 × 1,443.72
4. Step 4: Simplify right side
   2,622.68x = 5,225,212.48
5. Step 5: Solve for x
   x = 5,225,212.48/2,622.68
6. Step 6: Final answer
   x = 1,992.32