Finding the Fourth Proportional to 2,555.82, 3,527.46 and 1,561.44

Step by Step Solution

1. Step 1: Write the proportion equation
   2,555.82 : 3,527.46 = 1,561.44 : x
2. Step 2: Convert to fraction form
   2,555.82/3,527.46 = 1,561.44/x
3. Step 3: Cross multiply
   2,555.82x = 3,527.46 × 1,561.44
4. Step 4: Simplify right side
   2,555.82x = 5,507,917.14
5. Step 5: Solve for x
   x = 5,507,917.14/2,555.82
6. Step 6: Final answer
   x = 2,155.05