Finding the Fourth Proportional to 2,426.15, 3,635.75 and 1,039.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,426.15 : 3,635.75 = 1,039.12 : x
2. Step 2: Convert to fraction form
   2,426.15/3,635.75 = 1,039.12/x
3. Step 3: Cross multiply
   2,426.15x = 3,635.75 × 1,039.12
4. Step 4: Simplify right side
   2,426.15x = 3,777,974.05
5. Step 5: Solve for x
   x = 3,777,974.05/2,426.15
6. Step 6: Final answer
   x = 1,557.19