Finding the Fourth Proportional to 2,981.97, 4,472.42 and 1,338.57

Step by Step Solution

1. Step 1: Write the proportion equation
   2,981.97 : 4,472.42 = 1,338.57 : x
2. Step 2: Convert to fraction form
   2,981.97/4,472.42 = 1,338.57/x
3. Step 3: Cross multiply
   2,981.97x = 4,472.42 × 1,338.57
4. Step 4: Simplify right side
   2,981.97x = 5,986,640.55
5. Step 5: Solve for x
   x = 5,986,640.55/2,981.97
6. Step 6: Final answer
   x = 2,007.61