Finding the Fourth Proportional to 3,500.34, 5,243.67 and 2,109.54

Step by Step Solution

1. Step 1: Write the proportion equation
   3,500.34 : 5,243.67 = 2,109.54 : x
2. Step 2: Convert to fraction form
   3,500.34/5,243.67 = 2,109.54/x
3. Step 3: Cross multiply
   3,500.34x = 5,243.67 × 2,109.54
4. Step 4: Simplify right side
   3,500.34x = 11,061,760.18
5. Step 5: Solve for x
   x = 11,061,760.18/3,500.34
6. Step 6: Final answer
   x = 3,160.20