Finding the Fourth Proportional to 2,638.68, 3,641.36 and 1,459.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,638.68 : 3,641.36 = 1,459.78 : x
2. Step 2: Convert to fraction form
   2,638.68/3,641.36 = 1,459.78/x
3. Step 3: Cross multiply
   2,638.68x = 3,641.36 × 1,459.78
4. Step 4: Simplify right side
   2,638.68x = 5,315,584.50
5. Step 5: Solve for x
   x = 5,315,584.50/2,638.68
6. Step 6: Final answer
   x = 2,014.49