Finding the Fourth Proportional to 1,015.62, 1,401.49 and 573.62

Step by Step Solution

1. Step 1: Write the proportion equation
   1,015.62 : 1,401.49 = 573.62 : x
2. Step 2: Convert to fraction form
   1,015.62/1,401.49 = 573.62/x
3. Step 3: Cross multiply
   1,015.62x = 1,401.49 × 573.62
4. Step 4: Simplify right side
   1,015.62x = 803,922.69
5. Step 5: Solve for x
   x = 803,922.69/1,015.62
6. Step 6: Final answer
   x = 791.56