Finding the Fourth Proportional to 2,480.46, 3,423.18 and 1,485.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,480.46 : 3,423.18 = 1,485.78 : x
2. Step 2: Convert to fraction form
   2,480.46/3,423.18 = 1,485.78/x
3. Step 3: Cross multiply
   2,480.46x = 3,423.18 × 1,485.78
4. Step 4: Simplify right side
   2,480.46x = 5,086,092.38
5. Step 5: Solve for x
   x = 5,086,092.38/2,480.46
6. Step 6: Final answer
   x = 2,050.46