Finding the Fourth Proportional to 2,556.72, 3,529.98 and 1,509.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,556.72 : 3,529.98 = 1,509.12 : x
2. Step 2: Convert to fraction form
   2,556.72/3,529.98 = 1,509.12/x
3. Step 3: Cross multiply
   2,556.72x = 3,529.98 × 1,509.12
4. Step 4: Simplify right side
   2,556.72x = 5,327,163.42
5. Step 5: Solve for x
   x = 5,327,163.42/2,556.72
6. Step 6: Final answer
   x = 2,083.59