Finding the Fourth Proportional to 2,091.33, 3,122.30 and 1,726.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,091.33 : 3,122.30 = 1,726.83 : x
2. Step 2: Convert to fraction form
   2,091.33/3,122.30 = 1,726.83/x
3. Step 3: Cross multiply
   2,091.33x = 3,122.30 × 1,726.83
4. Step 4: Simplify right side
   2,091.33x = 5,391,685.63
5. Step 5: Solve for x
   x = 5,391,685.63/2,091.33
6. Step 6: Final answer
   x = 2,578.11