Finding the Fourth Proportional to 4,380.72, 6,047.52 and 2,811.48

Step by Step Solution

1. Step 1: Write the proportion equation
   4,380.72 : 6,047.52 = 2,811.48 : x
2. Step 2: Convert to fraction form
   4,380.72/6,047.52 = 2,811.48/x
3. Step 3: Cross multiply
   4,380.72x = 6,047.52 × 2,811.48
4. Step 4: Simplify right side
   4,380.72x = 17,002,481.53
5. Step 5: Solve for x
   x = 17,002,481.53/4,380.72
6. Step 6: Final answer
   x = 3,881.21