Finding the Fourth Proportional to 2,638.86, 3,641.56 and 1,459.90

Step by Step Solution

1. Step 1: Write the proportion equation
   2,638.86 : 3,641.56 = 1,459.90 : x
2. Step 2: Convert to fraction form
   2,638.86/3,641.56 = 1,459.90/x
3. Step 3: Cross multiply
   2,638.86x = 3,641.56 × 1,459.90
4. Step 4: Simplify right side
   2,638.86x = 5,316,313.44
5. Step 5: Solve for x
   x = 5,316,313.44/2,638.86
6. Step 6: Final answer
   x = 2,014.63