Finding the Fourth Proportional to 2,266.39, 3,401.91 and 1,389.49

Step by Step Solution

1. Step 1: Write the proportion equation
   2,266.39 : 3,401.91 = 1,389.49 : x
2. Step 2: Convert to fraction form
   2,266.39/3,401.91 = 1,389.49/x
3. Step 3: Cross multiply
   2,266.39x = 3,401.91 × 1,389.49
4. Step 4: Simplify right side
   2,266.39x = 4,726,919.93
5. Step 5: Solve for x
   x = 4,726,919.93/2,266.39
6. Step 6: Final answer
   x = 2,085.66