Finding the Fourth Proportional to 2,576.52, 3,555.90 and 1,528.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,576.52 : 3,555.90 = 1,528.38 : x
2. Step 2: Convert to fraction form
   2,576.52/3,555.90 = 1,528.38/x
3. Step 3: Cross multiply
   2,576.52x = 3,555.90 × 1,528.38
4. Step 4: Simplify right side
   2,576.52x = 5,434,766.44
5. Step 5: Solve for x
   x = 5,434,766.44/2,576.52
6. Step 6: Final answer
   x = 2,109.34