Finding the Fourth Proportional to 2,884.56, 3,968.10 and 2,528.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,884.56 : 3,968.10 = 2,528.88 : x
2. Step 2: Convert to fraction form
   2,884.56/3,968.10 = 2,528.88/x
3. Step 3: Cross multiply
   2,884.56x = 3,968.10 × 2,528.88
4. Step 4: Simplify right side
   2,884.56x = 10,034,848.73
5. Step 5: Solve for x
   x = 10,034,848.73/2,884.56
6. Step 6: Final answer
   x = 3,478.81