Finding the Fourth Proportional to 2,454.03, 3,678.62 and 992.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,454.03 : 3,678.62 = 992.25 : x
2. Step 2: Convert to fraction form
   2,454.03/3,678.62 = 992.25/x
3. Step 3: Cross multiply
   2,454.03x = 3,678.62 × 992.25
4. Step 4: Simplify right side
   2,454.03x = 3,650,105.73
5. Step 5: Solve for x
   x = 3,650,105.73/2,454.03
6. Step 6: Final answer
   x = 1,487.39