Finding the Fourth Proportional to 2,638.05, 3,640.32 and 1,459.02

Step by Step Solution

1. Step 1: Write the proportion equation
   2,638.05 : 3,640.32 = 1,459.02 : x
2. Step 2: Convert to fraction form
   2,638.05/3,640.32 = 1,459.02/x
3. Step 3: Cross multiply
   2,638.05x = 3,640.32 × 1,459.02
4. Step 4: Simplify right side
   2,638.05x = 5,311,299.69
5. Step 5: Solve for x
   x = 5,311,299.69/2,638.05
6. Step 6: Final answer
   x = 2,013.34