Finding the Fourth Proportional to 2,508.18, 3,460.82 and 1,389.08

Step by Step Solution

1. Step 1: Write the proportion equation
   2,508.18 : 3,460.82 = 1,389.08 : x
2. Step 2: Convert to fraction form
   2,508.18/3,460.82 = 1,389.08/x
3. Step 3: Cross multiply
   2,508.18x = 3,460.82 × 1,389.08
4. Step 4: Simplify right side
   2,508.18x = 4,807,355.85
5. Step 5: Solve for x
   x = 4,807,355.85/2,508.18
6. Step 6: Final answer
   x = 1,916.67