Finding the Fourth Proportional to 1,059.33, 1,587.14 and 572.73

Step by Step Solution

1. Step 1: Write the proportion equation
   1,059.33 : 1,587.14 = 572.73 : x
2. Step 2: Convert to fraction form
   1,059.33/1,587.14 = 572.73/x
3. Step 3: Cross multiply
   1,059.33x = 1,587.14 × 572.73
4. Step 4: Simplify right side
   1,059.33x = 909,002.69
5. Step 5: Solve for x
   x = 909,002.69/1,059.33
6. Step 6: Final answer
   x = 858.09