Finding the Fourth Proportional to 1,726.29, 2,382.06 and 980.28

Step by Step Solution

1. Step 1: Write the proportion equation
   1,726.29 : 2,382.06 = 980.28 : x
2. Step 2: Convert to fraction form
   1,726.29/2,382.06 = 980.28/x
3. Step 3: Cross multiply
   1,726.29x = 2,382.06 × 980.28
4. Step 4: Simplify right side
   1,726.29x = 2,335,085.78
5. Step 5: Solve for x
   x = 2,335,085.78/1,726.29
6. Step 6: Final answer
   x = 1,352.66