Finding the Fourth Proportional to 3,929.28, 5,894.28 and 1,007.61

Step by Step Solution

1. Step 1: Write the proportion equation
   3,929.28 : 5,894.28 = 1,007.61 : x
2. Step 2: Convert to fraction form
   3,929.28/5,894.28 = 1,007.61/x
3. Step 3: Cross multiply
   3,929.28x = 5,894.28 × 1,007.61
4. Step 4: Simplify right side
   3,929.28x = 5,939,147.69
5. Step 5: Solve for x
   x = 5,939,147.69/3,929.28
6. Step 6: Final answer
   x = 1,511.51