Finding the Fourth Proportional to 1,726.72, 2,383.01 and 980.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,726.72 : 2,383.01 = 980.76 : x
2. Step 2: Convert to fraction form
   1,726.72/2,383.01 = 980.76/x
3. Step 3: Cross multiply
   1,726.72x = 2,383.01 × 980.76
4. Step 4: Simplify right side
   1,726.72x = 2,337,160.89
5. Step 5: Solve for x
   x = 2,337,160.89/1,726.72
6. Step 6: Final answer
   x = 1,353.53