Finding the Fourth Proportional to 3,572.72, 5,354.20 and 2,013.48

Step by Step Solution

1. Step 1: Write the proportion equation
   3,572.72 : 5,354.20 = 2,013.48 : x
2. Step 2: Convert to fraction form
   3,572.72/5,354.20 = 2,013.48/x
3. Step 3: Cross multiply
   3,572.72x = 5,354.20 × 2,013.48
4. Step 4: Simplify right side
   3,572.72x = 10,780,574.62
5. Step 5: Solve for x
   x = 10,780,574.62/3,572.72
6. Step 6: Final answer
   x = 3,017.47