Finding the Fourth Proportional to 2,354.28, 3,263.76 and 2,229.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,354.28 : 3,263.76 = 2,229.42 : x
2. Step 2: Convert to fraction form
   2,354.28/3,263.76 = 2,229.42/x
3. Step 3: Cross multiply
   2,354.28x = 3,263.76 × 2,229.42
4. Step 4: Simplify right side
   2,354.28x = 7,276,291.82
5. Step 5: Solve for x
   x = 7,276,291.82/2,354.28
6. Step 6: Final answer
   x = 3,090.67