Finding the Fourth Proportional to 2,622.77, 3,619.45 and 1,443.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,622.77 : 3,619.45 = 1,443.86 : x
2. Step 2: Convert to fraction form
   2,622.77/3,619.45 = 1,443.86/x
3. Step 3: Cross multiply
   2,622.77x = 3,619.45 × 1,443.86
4. Step 4: Simplify right side
   2,622.77x = 5,225,980.91
5. Step 5: Solve for x
   x = 5,225,980.91/2,622.77
6. Step 6: Final answer
   x = 1,992.54