Finding the Fourth Proportional to 2,508.33, 3,461.40 and 1,389.27

Step by Step Solution

1. Step 1: Write the proportion equation
   2,508.33 : 3,461.40 = 1,389.27 : x
2. Step 2: Convert to fraction form
   2,508.33/3,461.40 = 1,389.27/x
3. Step 3: Cross multiply
   2,508.33x = 3,461.40 × 1,389.27
4. Step 4: Simplify right side
   2,508.33x = 4,808,819.18
5. Step 5: Solve for x
   x = 4,808,819.18/2,508.33
6. Step 6: Final answer
   x = 1,917.14