Finding the Fourth Proportional to 2,217.76, 3,328.56 and 1,192.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,217.76 : 3,328.56 = 1,192.48 : x
2. Step 2: Convert to fraction form
   2,217.76/3,328.56 = 1,192.48/x
3. Step 3: Cross multiply
   2,217.76x = 3,328.56 × 1,192.48
4. Step 4: Simplify right side
   2,217.76x = 3,969,241.23
5. Step 5: Solve for x
   x = 3,969,241.23/2,217.76
6. Step 6: Final answer
   x = 1,789.75