Finding the Fourth Proportional to 2,623.71, 3,620.72 and 1,444.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,623.71 : 3,620.72 = 1,444.78 : x
2. Step 2: Convert to fraction form
   2,623.71/3,620.72 = 1,444.78/x
3. Step 3: Cross multiply
   2,623.71x = 3,620.72 × 1,444.78
4. Step 4: Simplify right side
   2,623.71x = 5,231,143.84
5. Step 5: Solve for x
   x = 5,231,143.84/2,623.71
6. Step 6: Final answer
   x = 1,993.80