Finding the Fourth Proportional to 2,187.72, 3,275.73 and 1,726.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,187.72 : 3,275.73 = 1,726.38 : x
2. Step 2: Convert to fraction form
   2,187.72/3,275.73 = 1,726.38/x
3. Step 3: Cross multiply
   2,187.72x = 3,275.73 × 1,726.38
4. Step 4: Simplify right side
   2,187.72x = 5,655,154.76
5. Step 5: Solve for x
   x = 5,655,154.76/2,187.72
6. Step 6: Final answer
   x = 2,584.95