Finding the Fourth Proportional to 3,548.76, 4,897.22 and 2,223.20

Step by Step Solution

1. Step 1: Write the proportion equation
   3,548.76 : 4,897.22 = 2,223.20 : x
2. Step 2: Convert to fraction form
   3,548.76/4,897.22 = 2,223.20/x
3. Step 3: Cross multiply
   3,548.76x = 4,897.22 × 2,223.20
4. Step 4: Simplify right side
   3,548.76x = 10,887,499.50
5. Step 5: Solve for x
   x = 10,887,499.50/3,548.76
6. Step 6: Final answer
   x = 3,067.97