Finding the Fourth Proportional to 2,557.14, 3,528.72 and 1,613.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,557.14 : 3,528.72 = 1,613.10 : x
2. Step 2: Convert to fraction form
   2,557.14/3,528.72 = 1,613.10/x
3. Step 3: Cross multiply
   2,557.14x = 3,528.72 × 1,613.10
4. Step 4: Simplify right side
   2,557.14x = 5,692,178.23
5. Step 5: Solve for x
   x = 5,692,178.23/2,557.14
6. Step 6: Final answer
   x = 2,225.99