Finding the Fourth Proportional to 2,576.56, 3,555.12 and 1,528.24

Step by Step Solution

1. Step 1: Write the proportion equation
   2,576.56 : 3,555.12 = 1,528.24 : x
2. Step 2: Convert to fraction form
   2,576.56/3,555.12 = 1,528.24/x
3. Step 3: Cross multiply
   2,576.56x = 3,555.12 × 1,528.24
4. Step 4: Simplify right side
   2,576.56x = 5,433,076.59
5. Step 5: Solve for x
   x = 5,433,076.59/2,576.56
6. Step 6: Final answer
   x = 2,108.66