Finding the Fourth Proportional to 2,039.73, 3,059.13 and 578.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,039.73 : 3,059.13 = 578.52 : x
2. Step 2: Convert to fraction form
   2,039.73/3,059.13 = 578.52/x
3. Step 3: Cross multiply
   2,039.73x = 3,059.13 × 578.52
4. Step 4: Simplify right side
   2,039.73x = 1,769,767.89
5. Step 5: Solve for x
   x = 1,769,767.89/2,039.73
6. Step 6: Final answer
   x = 867.65