Finding the Fourth Proportional to 1,508.52, 2,263.24 and 728.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,508.52 : 2,263.24 = 728.55 : x
2. Step 2: Convert to fraction form
   1,508.52/2,263.24 = 728.55/x
3. Step 3: Cross multiply
   1,508.52x = 2,263.24 × 728.55
4. Step 4: Simplify right side
   1,508.52x = 1,648,881.54
5. Step 5: Solve for x
   x = 1,648,881.54/1,508.52
6. Step 6: Final answer
   x = 1,093.04