Finding the Fourth Proportional to 2,528.28, 3,793.33 and 885.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,528.28 : 3,793.33 = 885.30 : x
2. Step 2: Convert to fraction form
   2,528.28/3,793.33 = 885.30/x
3. Step 3: Cross multiply
   2,528.28x = 3,793.33 × 885.30
4. Step 4: Simplify right side
   2,528.28x = 3,358,221.93
5. Step 5: Solve for x
   x = 3,358,221.93/2,528.28
6. Step 6: Final answer
   x = 1,328.26