Finding the Fourth Proportional to 2,388.92, 3,583.76 and 1,002.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,388.92 : 3,583.76 = 1,002.20 : x
2. Step 2: Convert to fraction form
   2,388.92/3,583.76 = 1,002.20/x
3. Step 3: Cross multiply
   2,388.92x = 3,583.76 × 1,002.20
4. Step 4: Simplify right side
   2,388.92x = 3,591,644.27
5. Step 5: Solve for x
   x = 3,591,644.27/2,388.92
6. Step 6: Final answer
   x = 1,503.46