Finding the Fourth Proportional to 3,993.31, 5,990.04 and 1,528.27

Step by Step Solution

1. Step 1: Write the proportion equation
   3,993.31 : 5,990.04 = 1,528.27 : x
2. Step 2: Convert to fraction form
   3,993.31/5,990.04 = 1,528.27/x
3. Step 3: Cross multiply
   3,993.31x = 5,990.04 × 1,528.27
4. Step 4: Simplify right side
   3,993.31x = 9,154,398.43
5. Step 5: Solve for x
   x = 9,154,398.43/3,993.31
6. Step 6: Final answer
   x = 2,292.43