Finding the Fourth Proportional to 3,631.34, 5,011.25 and 2,139.27

Step by Step Solution

1. Step 1: Write the proportion equation
   3,631.34 : 5,011.25 = 2,139.27 : x
2. Step 2: Convert to fraction form
   3,631.34/5,011.25 = 2,139.27/x
3. Step 3: Cross multiply
   3,631.34x = 5,011.25 × 2,139.27
4. Step 4: Simplify right side
   3,631.34x = 10,720,406.09
5. Step 5: Solve for x
   x = 10,720,406.09/3,631.34
6. Step 6: Final answer
   x = 2,952.19