Finding the Fourth Proportional to 2,454.47, 3,682.35 and 1,285.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,454.47 : 3,682.35 = 1,285.05 : x
2. Step 2: Convert to fraction form
   2,454.47/3,682.35 = 1,285.05/x
3. Step 3: Cross multiply
   2,454.47x = 3,682.35 × 1,285.05
4. Step 4: Simplify right side
   2,454.47x = 4,732,003.87
5. Step 5: Solve for x
   x = 4,732,003.87/2,454.47
6. Step 6: Final answer
   x = 1,927.92