Finding the Fourth Proportional to 2,561.63, 3,535.45 and 1,513.49

Step by Step Solution

1. Step 1: Write the proportion equation
   2,561.63 : 3,535.45 = 1,513.49 : x
2. Step 2: Convert to fraction form
   2,561.63/3,535.45 = 1,513.49/x
3. Step 3: Cross multiply
   2,561.63x = 3,535.45 × 1,513.49
4. Step 4: Simplify right side
   2,561.63x = 5,350,846.76
5. Step 5: Solve for x
   x = 5,350,846.76/2,561.63
6. Step 6: Final answer
   x = 2,088.85