Finding the Fourth Proportional to 3,338.54, 5,008.52 and 998.73

Step by Step Solution

1. Step 1: Write the proportion equation
   3,338.54 : 5,008.52 = 998.73 : x
2. Step 2: Convert to fraction form
   3,338.54/5,008.52 = 998.73/x
3. Step 3: Cross multiply
   3,338.54x = 5,008.52 × 998.73
4. Step 4: Simplify right side
   3,338.54x = 5,002,154.19
5. Step 5: Solve for x
   x = 5,002,154.19/3,338.54
6. Step 6: Final answer
   x = 1,498.31