Finding the Fourth Proportional to 1,015.73, 1,524.01 and 357.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,015.73 : 1,524.01 = 357.69 : x
2. Step 2: Convert to fraction form
   1,015.73/1,524.01 = 357.69/x
3. Step 3: Cross multiply
   1,015.73x = 1,524.01 × 357.69
4. Step 4: Simplify right side
   1,015.73x = 545,128.91
5. Step 5: Solve for x
   x = 545,128.91/1,015.73
6. Step 6: Final answer
   x = 536.69