Finding the Fourth Proportional to 3,391.22, 5,086.18 and 925.46

Step by Step Solution

1. Step 1: Write the proportion equation
   3,391.22 : 5,086.18 = 925.46 : x
2. Step 2: Convert to fraction form
   3,391.22/5,086.18 = 925.46/x
3. Step 3: Cross multiply
   3,391.22x = 5,086.18 × 925.46
4. Step 4: Simplify right side
   3,391.22x = 4,707,066.54
5. Step 5: Solve for x
   x = 4,707,066.54/3,391.22
6. Step 6: Final answer
   x = 1,388.01