Finding the Fourth Proportional to 1,015.52, 1,523.54 and 495.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,015.52 : 1,523.54 = 495.50 : x
2. Step 2: Convert to fraction form
   1,015.52/1,523.54 = 495.50/x
3. Step 3: Cross multiply
   1,015.52x = 1,523.54 × 495.50
4. Step 4: Simplify right side
   1,015.52x = 754,907.69
5. Step 5: Solve for x
   x = 754,907.69/1,015.52
6. Step 6: Final answer
   x = 743.37