Finding the Fourth Proportional to 2,561.83, 3,535.14 and 1,513.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,561.83 : 3,535.14 = 1,513.69 : x
2. Step 2: Convert to fraction form
   2,561.83/3,535.14 = 1,513.69/x
3. Step 3: Cross multiply
   2,561.83x = 3,535.14 × 1,513.69
4. Step 4: Simplify right side
   2,561.83x = 5,351,102.91
5. Step 5: Solve for x
   x = 5,351,102.91/2,561.83
6. Step 6: Final answer
   x = 2,088.78