Finding the Fourth Proportional to 2,638.46, 3,640.91 and 1,459.61

Step by Step Solution

1. Step 1: Write the proportion equation
   2,638.46 : 3,640.91 = 1,459.61 : x
2. Step 2: Convert to fraction form
   2,638.46/3,640.91 = 1,459.61/x
3. Step 3: Cross multiply
   2,638.46x = 3,640.91 × 1,459.61
4. Step 4: Simplify right side
   2,638.46x = 5,314,308.65
5. Step 5: Solve for x
   x = 5,314,308.65/2,638.46
6. Step 6: Final answer
   x = 2,014.17