Finding the Fourth Proportional to 2,456.85, 3,390.42 and 1,337.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,456.85 : 3,390.42 = 1,337.76 : x
2. Step 2: Convert to fraction form
   2,456.85/3,390.42 = 1,337.76/x
3. Step 3: Cross multiply
   2,456.85x = 3,390.42 × 1,337.76
4. Step 4: Simplify right side
   2,456.85x = 4,535,568.26
5. Step 5: Solve for x
   x = 4,535,568.26/2,456.85
6. Step 6: Final answer
   x = 1,846.09