Finding the Fourth Proportional to 2,638.25, 3,640.73 and 1,459.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,638.25 : 3,640.73 = 1,459.30 : x
2. Step 2: Convert to fraction form
   2,638.25/3,640.73 = 1,459.30/x
3. Step 3: Cross multiply
   2,638.25x = 3,640.73 × 1,459.30
4. Step 4: Simplify right side
   2,638.25x = 5,312,900.89
5. Step 5: Solve for x
   x = 5,312,900.89/2,638.25
6. Step 6: Final answer
   x = 2,013.80