Finding the Fourth Proportional to 2,638.72, 3,641.40 and 1,459.87

Step by Step Solution

1. Step 1: Write the proportion equation
   2,638.72 : 3,641.40 = 1,459.87 : x
2. Step 2: Convert to fraction form
   2,638.72/3,641.40 = 1,459.87/x
3. Step 3: Cross multiply
   2,638.72x = 3,641.40 × 1,459.87
4. Step 4: Simplify right side
   2,638.72x = 5,315,970.62
5. Step 5: Solve for x
   x = 5,315,970.62/2,638.72
6. Step 6: Final answer
   x = 2,014.60