Finding the Fourth Proportional to 2,456.57, 3,390.15 and 1,337.45

Step by Step Solution

1. Step 1: Write the proportion equation
   2,456.57 : 3,390.15 = 1,337.45 : x
2. Step 2: Convert to fraction form
   2,456.57/3,390.15 = 1,337.45/x
3. Step 3: Cross multiply
   2,456.57x = 3,390.15 × 1,337.45
4. Step 4: Simplify right side
   2,456.57x = 4,534,156.12
5. Step 5: Solve for x
   x = 4,534,156.12/2,456.57
6. Step 6: Final answer
   x = 1,845.73