Finding the Fourth Proportional to 3,820.72, 5,721.35 and 2,518.24

Step by Step Solution

1. Step 1: Write the proportion equation
   3,820.72 : 5,721.35 = 2,518.24 : x
2. Step 2: Convert to fraction form
   3,820.72/5,721.35 = 2,518.24/x
3. Step 3: Cross multiply
   3,820.72x = 5,721.35 × 2,518.24
4. Step 4: Simplify right side
   3,820.72x = 14,407,732.42
5. Step 5: Solve for x
   x = 14,407,732.42/3,820.72
6. Step 6: Final answer
   x = 3,770.95