Finding the Fourth Proportional to 2,072.20, 3,104.52 and 1,726.06

Step by Step Solution

1. Step 1: Write the proportion equation
   2,072.20 : 3,104.52 = 1,726.06 : x
2. Step 2: Convert to fraction form
   2,072.20/3,104.52 = 1,726.06/x
3. Step 3: Cross multiply
   2,072.20x = 3,104.52 × 1,726.06
4. Step 4: Simplify right side
   2,072.20x = 5,358,587.79
5. Step 5: Solve for x
   x = 5,358,587.79/2,072.20
6. Step 6: Final answer
   x = 2,585.94