Finding the Fourth Proportional to 1,458.04, 2,185.23 and 726.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,458.04 : 2,185.23 = 726.30 : x
2. Step 2: Convert to fraction form
   1,458.04/2,185.23 = 726.30/x
3. Step 3: Cross multiply
   1,458.04x = 2,185.23 × 726.30
4. Step 4: Simplify right side
   1,458.04x = 1,587,132.55
5. Step 5: Solve for x
   x = 1,587,132.55/1,458.04
6. Step 6: Final answer
   x = 1,088.54