Finding the Fourth Proportional to 1,550.30, 2,323.48 and 726.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,550.30 : 2,323.48 = 726.76 : x
2. Step 2: Convert to fraction form
   1,550.30/2,323.48 = 726.76/x
3. Step 3: Cross multiply
   1,550.30x = 2,323.48 × 726.76
4. Step 4: Simplify right side
   1,550.30x = 1,688,608.69
5. Step 5: Solve for x
   x = 1,688,608.69/1,550.30
6. Step 6: Final answer
   x = 1,089.21