Finding the Fourth Proportional to 3,928.08, 5,892.32 and 1,006.42

Step by Step Solution

1. Step 1: Write the proportion equation
   3,928.08 : 5,892.32 = 1,006.42 : x
2. Step 2: Convert to fraction form
   3,928.08/5,892.32 = 1,006.42/x
3. Step 3: Cross multiply
   3,928.08x = 5,892.32 × 1,006.42
4. Step 4: Simplify right side
   3,928.08x = 5,930,148.69
5. Step 5: Solve for x
   x = 5,930,148.69/3,928.08
6. Step 6: Final answer
   x = 1,509.68