Finding the Fourth Proportional to 1,726.54, 2,382.78 and 980.54

Step by Step Solution

1. Step 1: Write the proportion equation
   1,726.54 : 2,382.78 = 980.54 : x
2. Step 2: Convert to fraction form
   1,726.54/2,382.78 = 980.54/x
3. Step 3: Cross multiply
   1,726.54x = 2,382.78 × 980.54
4. Step 4: Simplify right side
   1,726.54x = 2,336,411.10
5. Step 5: Solve for x
   x = 2,336,411.10/1,726.54
6. Step 6: Final answer
   x = 1,353.23