Finding the Fourth Proportional to 2,454.78, 3,682.06 and 993.94

Step by Step Solution

1. Step 1: Write the proportion equation
   2,454.78 : 3,682.06 = 993.94 : x
2. Step 2: Convert to fraction form
   2,454.78/3,682.06 = 993.94/x
3. Step 3: Cross multiply
   2,454.78x = 3,682.06 × 993.94
4. Step 4: Simplify right side
   2,454.78x = 3,659,746.72
5. Step 5: Solve for x
   x = 3,659,746.72/2,454.78
6. Step 6: Final answer
   x = 1,490.87