Finding the Fourth Proportional to 1,355.69, 2,033.89 and 575.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,355.69 : 2,033.89 = 575.72 : x
2. Step 2: Convert to fraction form
   1,355.69/2,033.89 = 575.72/x
3. Step 3: Cross multiply
   1,355.69x = 2,033.89 × 575.72
4. Step 4: Simplify right side
   1,355.69x = 1,170,951.15
5. Step 5: Solve for x
   x = 1,170,951.15/1,355.69
6. Step 6: Final answer
   x = 863.73