Finding the Fourth Proportional to 2,638.18, 3,640.65 and 1,459.27

Step by Step Solution

1. Step 1: Write the proportion equation
   2,638.18 : 3,640.65 = 1,459.27 : x
2. Step 2: Convert to fraction form
   2,638.18/3,640.65 = 1,459.27/x
3. Step 3: Cross multiply
   2,638.18x = 3,640.65 × 1,459.27
4. Step 4: Simplify right side
   2,638.18x = 5,312,691.33
5. Step 5: Solve for x
   x = 5,312,691.33/2,638.18
6. Step 6: Final answer
   x = 2,013.77