Finding the Fourth Proportional to 3,819.56, 5,273.51 and 2,644.25

Step by Step Solution

1. Step 1: Write the proportion equation
   3,819.56 : 5,273.51 = 2,644.25 : x
2. Step 2: Convert to fraction form
   3,819.56/5,273.51 = 2,644.25/x
3. Step 3: Cross multiply
   3,819.56x = 5,273.51 × 2,644.25
4. Step 4: Simplify right side
   3,819.56x = 13,944,439.23
5. Step 5: Solve for x
   x = 13,944,439.23/3,819.56
6. Step 6: Final answer
   x = 3,650.80