Finding the Fourth Proportional to 1,726.50, 2,382.63 and 980.49

Step by Step Solution

1. Step 1: Write the proportion equation
   1,726.50 : 2,382.63 = 980.49 : x
2. Step 2: Convert to fraction form
   1,726.50/2,382.63 = 980.49/x
3. Step 3: Cross multiply
   1,726.50x = 2,382.63 × 980.49
4. Step 4: Simplify right side
   1,726.50x = 2,336,144.89
5. Step 5: Solve for x
   x = 2,336,144.89/1,726.50
6. Step 6: Final answer
   x = 1,353.11