Finding the Fourth Proportional to 1,548.72, 2,322.38 and 726.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,548.72 : 2,322.38 = 726.32 : x
2. Step 2: Convert to fraction form
   1,548.72/2,322.38 = 726.32/x
3. Step 3: Cross multiply
   1,548.72x = 2,322.38 × 726.32
4. Step 4: Simplify right side
   1,548.72x = 1,686,791.04
5. Step 5: Solve for x
   x = 1,686,791.04/1,548.72
6. Step 6: Final answer
   x = 1,089.15