Finding the Fourth Proportional to 3,938.52, 5,908.12 and 1,305.47

Step by Step Solution

1. Step 1: Write the proportion equation
   3,938.52 : 5,908.12 = 1,305.47 : x
2. Step 2: Convert to fraction form
   3,938.52/5,908.12 = 1,305.47/x
3. Step 3: Cross multiply
   3,938.52x = 5,908.12 × 1,305.47
4. Step 4: Simplify right side
   3,938.52x = 7,712,859.03
5. Step 5: Solve for x
   x = 7,712,859.03/3,938.52
6. Step 6: Final answer
   x = 1,958.31