Finding the Fourth Proportional to 2,039.49, 3,059.37 and 578.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,039.49 : 3,059.37 = 578.52 : x
2. Step 2: Convert to fraction form
   2,039.49/3,059.37 = 578.52/x
3. Step 3: Cross multiply
   2,039.49x = 3,059.37 × 578.52
4. Step 4: Simplify right side
   2,039.49x = 1,769,906.73
5. Step 5: Solve for x
   x = 1,769,906.73/2,039.49
6. Step 6: Final answer
   x = 867.82