Finding the Fourth Proportional to 2,622.74, 3,619.37 and 1,443.81

Step by Step Solution

1. Step 1: Write the proportion equation
   2,622.74 : 3,619.37 = 1,443.81 : x
2. Step 2: Convert to fraction form
   2,622.74/3,619.37 = 1,443.81/x
3. Step 3: Cross multiply
   2,622.74x = 3,619.37 × 1,443.81
4. Step 4: Simplify right side
   2,622.74x = 5,225,686.21
5. Step 5: Solve for x
   x = 5,225,686.21/2,622.74
6. Step 6: Final answer
   x = 1,992.45