Finding the Fourth Proportional to 2,039.02, 3,058.72 and 578.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,039.02 : 3,058.72 = 578.18 : x
2. Step 2: Convert to fraction form
   2,039.02/3,058.72 = 578.18/x
3. Step 3: Cross multiply
   2,039.02x = 3,058.72 × 578.18
4. Step 4: Simplify right side
   2,039.02x = 1,768,490.73
5. Step 5: Solve for x
   x = 1,768,490.73/2,039.02
6. Step 6: Final answer
   x = 867.32