Finding the Fourth Proportional to 2,622.66, 3,619.15 and 1,443.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,622.66 : 3,619.15 = 1,443.71 : x
2. Step 2: Convert to fraction form
   2,622.66/3,619.15 = 1,443.71/x
3. Step 3: Cross multiply
   2,622.66x = 3,619.15 × 1,443.71
4. Step 4: Simplify right side
   2,622.66x = 5,224,977.73
5. Step 5: Solve for x
   x = 5,224,977.73/2,622.66
6. Step 6: Final answer
   x = 1,992.24