Finding the Fourth Proportional to 3,123.45, 4,315.56 and 2,465.34

Step by Step Solution

1. Step 1: Write the proportion equation
   3,123.45 : 4,315.56 = 2,465.34 : x
2. Step 2: Convert to fraction form
   3,123.45/4,315.56 = 2,465.34/x
3. Step 3: Cross multiply
   3,123.45x = 4,315.56 × 2,465.34
4. Step 4: Simplify right side
   3,123.45x = 10,639,322.69
5. Step 5: Solve for x
   x = 10,639,322.69/3,123.45
6. Step 6: Final answer
   x = 3,406.27