Finding the Fourth Proportional to 2,426.16, 3,639.57 and 1,039.51

Step by Step Solution

1. Step 1: Write the proportion equation
   2,426.16 : 3,639.57 = 1,039.51 : x
2. Step 2: Convert to fraction form
   2,426.16/3,639.57 = 1,039.51/x
3. Step 3: Cross multiply
   2,426.16x = 3,639.57 × 1,039.51
4. Step 4: Simplify right side
   2,426.16x = 3,783,369.41
5. Step 5: Solve for x
   x = 3,783,369.41/2,426.16
6. Step 6: Final answer
   x = 1,559.41