Finding the Fourth Proportional to 3,934.69, 5,429.42 and 2,256.02

Step by Step Solution

1. Step 1: Write the proportion equation
   3,934.69 : 5,429.42 = 2,256.02 : x
2. Step 2: Convert to fraction form
   3,934.69/5,429.42 = 2,256.02/x
3. Step 3: Cross multiply
   3,934.69x = 5,429.42 × 2,256.02
4. Step 4: Simplify right side
   3,934.69x = 12,248,880.11
5. Step 5: Solve for x
   x = 12,248,880.11/3,934.69
6. Step 6: Final answer
   x = 3,113.05