Finding the Fourth Proportional to 1,456.89, 2,184.02 and 726.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,456.89 : 2,184.02 = 726.69 : x
2. Step 2: Convert to fraction form
   1,456.89/2,184.02 = 726.69/x
3. Step 3: Cross multiply
   1,456.89x = 2,184.02 × 726.69
4. Step 4: Simplify right side
   1,456.89x = 1,587,101.86
5. Step 5: Solve for x
   x = 1,587,101.86/1,456.89
6. Step 6: Final answer
   x = 1,089.38