Finding the Fourth Proportional to 2,683.67, 4,024.72 and 1,039.85

Step by Step Solution

1. Step 1: Write the proportion equation
   2,683.67 : 4,024.72 = 1,039.85 : x
2. Step 2: Convert to fraction form
   2,683.67/4,024.72 = 1,039.85/x
3. Step 3: Cross multiply
   2,683.67x = 4,024.72 × 1,039.85
4. Step 4: Simplify right side
   2,683.67x = 4,185,105.09
5. Step 5: Solve for x
   x = 4,185,105.09/2,683.67
6. Step 6: Final answer
   x = 1,559.47