Finding the Fourth Proportional to 2,556.24, 3,527.15 and 1,561.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,556.24 : 3,527.15 = 1,561.83 : x
2. Step 2: Convert to fraction form
   2,556.24/3,527.15 = 1,561.83/x
3. Step 3: Cross multiply
   2,556.24x = 3,527.15 × 1,561.83
4. Step 4: Simplify right side
   2,556.24x = 5,508,800.88
5. Step 5: Solve for x
   x = 5,508,800.88/2,556.24
6. Step 6: Final answer
   x = 2,155.04