Finding the Fourth Proportional to 1,150.28, 1,724.56 and 573.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,150.28 : 1,724.56 = 573.56 : x
2. Step 2: Convert to fraction form
   1,150.28/1,724.56 = 573.56/x
3. Step 3: Cross multiply
   1,150.28x = 1,724.56 × 573.56
4. Step 4: Simplify right side
   1,150.28x = 989,138.63
5. Step 5: Solve for x
   x = 989,138.63/1,150.28
6. Step 6: Final answer
   x = 859.91