Finding the Fourth Proportional to 2,638.35, 3,640.86 and 1,459.44

Step by Step Solution

1. Step 1: Write the proportion equation
   2,638.35 : 3,640.86 = 1,459.44 : x
2. Step 2: Convert to fraction form
   2,638.35/3,640.86 = 1,459.44/x
3. Step 3: Cross multiply
   2,638.35x = 3,640.86 × 1,459.44
4. Step 4: Simplify right side
   2,638.35x = 5,313,616.72
5. Step 5: Solve for x
   x = 5,313,616.72/2,638.35
6. Step 6: Final answer
   x = 2,013.99