Finding the Fourth Proportional to 2,452.06, 3,678.55 and 992.24

Step by Step Solution

1. Step 1: Write the proportion equation
   2,452.06 : 3,678.55 = 992.24 : x
2. Step 2: Convert to fraction form
   2,452.06/3,678.55 = 992.24/x
3. Step 3: Cross multiply
   2,452.06x = 3,678.55 × 992.24
4. Step 4: Simplify right side
   2,452.06x = 3,650,004.45
5. Step 5: Solve for x
   x = 3,650,004.45/2,452.06
6. Step 6: Final answer
   x = 1,488.55