Finding the Fourth Proportional to 728.69, 1,004.72 and 595.42

Step by Step Solution

1. Step 1: Write the proportion equation
   728.69 : 1,004.72 = 595.42 : x
2. Step 2: Convert to fraction form
   728.69/1,004.72 = 595.42/x
3. Step 3: Cross multiply
   728.69x = 1,004.72 × 595.42
4. Step 4: Simplify right side
   728.69x = 598,226.38
5. Step 5: Solve for x
   x = 598,226.38/728.69
6. Step 6: Final answer
   x = 820.96