Finding the Fourth Proportional to 2,561.56, 3,530.71 and 1,814.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,561.56 : 3,530.71 = 1,814.56 : x
2. Step 2: Convert to fraction form
   2,561.56/3,530.71 = 1,814.56/x
3. Step 3: Cross multiply
   2,561.56x = 3,530.71 × 1,814.56
4. Step 4: Simplify right side
   2,561.56x = 6,406,681.61
5. Step 5: Solve for x
   x = 6,406,681.61/2,561.56
6. Step 6: Final answer
   x = 2,501.08