Finding the Fourth Proportional to 3,654.90, 5,040.09 and 2,162.88

Step by Step Solution

1. Step 1: Write the proportion equation
   3,654.90 : 5,040.09 = 2,162.88 : x
2. Step 2: Convert to fraction form
   3,654.90/5,040.09 = 2,162.88/x
3. Step 3: Cross multiply
   3,654.90x = 5,040.09 × 2,162.88
4. Step 4: Simplify right side
   3,654.90x = 10,901,109.86
5. Step 5: Solve for x
   x = 10,901,109.86/3,654.90
6. Step 6: Final answer
   x = 2,982.60