Finding the Fourth Proportional to 3,926.56, 5,418.54 and 2,530.12

Step by Step Solution

1. Step 1: Write the proportion equation
   3,926.56 : 5,418.54 = 2,530.12 : x
2. Step 2: Convert to fraction form
   3,926.56/5,418.54 = 2,530.12/x
3. Step 3: Cross multiply
   3,926.56x = 5,418.54 × 2,530.12
4. Step 4: Simplify right side
   3,926.56x = 13,709,556.42
5. Step 5: Solve for x
   x = 13,709,556.42/3,926.56
6. Step 6: Final answer
   x = 3,491.49