Finding the Fourth Proportional to 2,204.88, 3,042.72 and 1,320.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,204.88 : 3,042.72 = 1,320.72 : x
2. Step 2: Convert to fraction form
   2,204.88/3,042.72 = 1,320.72/x
3. Step 3: Cross multiply
   2,204.88x = 3,042.72 × 1,320.72
4. Step 4: Simplify right side
   2,204.88x = 4,018,581.16
5. Step 5: Solve for x
   x = 4,018,581.16/2,204.88
6. Step 6: Final answer
   x = 1,822.58