Finding the Fourth Proportional to 2,204.72, 3,042.28 and 1,320.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,204.72 : 3,042.28 = 1,320.56 : x
2. Step 2: Convert to fraction form
   2,204.72/3,042.28 = 1,320.56/x
3. Step 3: Cross multiply
   2,204.72x = 3,042.28 × 1,320.56
4. Step 4: Simplify right side
   2,204.72x = 4,017,513.28
5. Step 5: Solve for x
   x = 4,017,513.28/2,204.72
6. Step 6: Final answer
   x = 1,822.23