Finding the Fourth Proportional to 2,644.38, 3,647.43 and 1,944.54

Step by Step Solution

1. Step 1: Write the proportion equation
   2,644.38 : 3,647.43 = 1,944.54 : x
2. Step 2: Convert to fraction form
   2,644.38/3,647.43 = 1,944.54/x
3. Step 3: Cross multiply
   2,644.38x = 3,647.43 × 1,944.54
4. Step 4: Simplify right side
   2,644.38x = 7,092,573.53
5. Step 5: Solve for x
   x = 7,092,573.53/2,644.38
6. Step 6: Final answer
   x = 2,682.13