Finding the Fourth Proportional to 3,338.42, 5,007.76 and 998.46

Step by Step Solution

1. Step 1: Write the proportion equation
   3,338.42 : 5,007.76 = 998.46 : x
2. Step 2: Convert to fraction form
   3,338.42/5,007.76 = 998.46/x
3. Step 3: Cross multiply
   3,338.42x = 5,007.76 × 998.46
4. Step 4: Simplify right side
   3,338.42x = 5,000,018.02
5. Step 5: Solve for x
   x = 5,000,018.02/3,338.42
6. Step 6: Final answer
   x = 1,497.72