Finding the Fourth Proportional to 2,275.59, 3,140.24 and 1,613.55

Step by Step Solution

1. Step 1: Write the proportion equation
   2,275.59 : 3,140.24 = 1,613.55 : x
2. Step 2: Convert to fraction form
   2,275.59/3,140.24 = 1,613.55/x
3. Step 3: Cross multiply
   2,275.59x = 3,140.24 × 1,613.55
4. Step 4: Simplify right side
   2,275.59x = 5,066,926.18
5. Step 5: Solve for x
   x = 5,066,926.18/2,275.59
6. Step 6: Final answer
   x = 2,226.64