Finding the Fourth Proportional to 2,144.75, 3,211.48 and 1,726.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,144.75 : 3,211.48 = 1,726.05 : x
2. Step 2: Convert to fraction form
   2,144.75/3,211.48 = 1,726.05/x
3. Step 3: Cross multiply
   2,144.75x = 3,211.48 × 1,726.05
4. Step 4: Simplify right side
   2,144.75x = 5,543,177.21
5. Step 5: Solve for x
   x = 5,543,177.21/2,144.75
6. Step 6: Final answer
   x = 2,584.54