Finding the Fourth Proportional to 2,623.78, 3,620.72 and 1,444.85

Step by Step Solution

1. Step 1: Write the proportion equation
   2,623.78 : 3,620.72 = 1,444.85 : x
2. Step 2: Convert to fraction form
   2,623.78/3,620.72 = 1,444.85/x
3. Step 3: Cross multiply
   2,623.78x = 3,620.72 × 1,444.85
4. Step 4: Simplify right side
   2,623.78x = 5,231,379.19
5. Step 5: Solve for x
   x = 5,231,379.19/2,623.78
6. Step 6: Final answer
   x = 1,993.84