Finding the Fourth Proportional to 2,271.05, 3,401.78 and 1,039.49

Step by Step Solution

1. Step 1: Write the proportion equation
   2,271.05 : 3,401.78 = 1,039.49 : x
2. Step 2: Convert to fraction form
   2,271.05/3,401.78 = 1,039.49/x
3. Step 3: Cross multiply
   2,271.05x = 3,401.78 × 1,039.49
4. Step 4: Simplify right side
   2,271.05x = 3,536,116.29
5. Step 5: Solve for x
   x = 3,536,116.29/2,271.05
6. Step 6: Final answer
   x = 1,557.04