Finding the Fourth Proportional to 2,561.47, 3,535.04 and 1,485.11

Step by Step Solution

1. Step 1: Write the proportion equation
   2,561.47 : 3,535.04 = 1,485.11 : x
2. Step 2: Convert to fraction form
   2,561.47/3,535.04 = 1,485.11/x
3. Step 3: Cross multiply
   2,561.47x = 3,535.04 × 1,485.11
4. Step 4: Simplify right side
   2,561.47x = 5,249,923.25
5. Step 5: Solve for x
   x = 5,249,923.25/2,561.47
6. Step 6: Final answer
   x = 2,049.57