Finding the Fourth Proportional to 2,556.02, 3,527.55 and 1,561.97

Step by Step Solution

1. Step 1: Write the proportion equation
   2,556.02 : 3,527.55 = 1,561.97 : x
2. Step 2: Convert to fraction form
   2,556.02/3,527.55 = 1,561.97/x
3. Step 3: Cross multiply
   2,556.02x = 3,527.55 × 1,561.97
4. Step 4: Simplify right side
   2,556.02x = 5,509,936.09
5. Step 5: Solve for x
   x = 5,509,936.09/2,556.02
6. Step 6: Final answer
   x = 2,155.67