Finding the Fourth Proportional to 1,726.59, 2,382.61 and 980.45

Step by Step Solution

1. Step 1: Write the proportion equation
   1,726.59 : 2,382.61 = 980.45 : x
2. Step 2: Convert to fraction form
   1,726.59/2,382.61 = 980.45/x
3. Step 3: Cross multiply
   1,726.59x = 2,382.61 × 980.45
4. Step 4: Simplify right side
   1,726.59x = 2,336,033.48
5. Step 5: Solve for x
   x = 2,336,033.48/1,726.59
6. Step 6: Final answer
   x = 1,352.98