Finding the Fourth Proportional to 1,227.32, 1,841.52 and 578.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,227.32 : 1,841.52 = 578.52 : x
2. Step 2: Convert to fraction form
   1,227.32/1,841.52 = 578.52/x
3. Step 3: Cross multiply
   1,227.32x = 1,841.52 × 578.52
4. Step 4: Simplify right side
   1,227.32x = 1,065,356.15
5. Step 5: Solve for x
   x = 1,065,356.15/1,227.32
6. Step 6: Final answer
   x = 868.03