Finding the Fourth Proportional to 1,222.95, 1,833.57 and 573.33

Step by Step Solution

1. Step 1: Write the proportion equation
   1,222.95 : 1,833.57 = 573.33 : x
2. Step 2: Convert to fraction form
   1,222.95/1,833.57 = 573.33/x
3. Step 3: Cross multiply
   1,222.95x = 1,833.57 × 573.33
4. Step 4: Simplify right side
   1,222.95x = 1,051,240.69
5. Step 5: Solve for x
   x = 1,051,240.69/1,222.95
6. Step 6: Final answer
   x = 859.59