Finding the Fourth Proportional to 2,726.16, 4,092.12 and 1,266.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,726.16 : 4,092.12 = 1,266.72 : x
2. Step 2: Convert to fraction form
   2,726.16/4,092.12 = 1,266.72/x
3. Step 3: Cross multiply
   2,726.16x = 4,092.12 × 1,266.72
4. Step 4: Simplify right side
   2,726.16x = 5,183,570.25
5. Step 5: Solve for x
   x = 5,183,570.25/2,726.16
6. Step 6: Final answer
   x = 1,901.42