Finding the Fourth Proportional to 2,945.61, 4,068.56 and 2,202.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,945.61 : 4,068.56 = 2,202.88 : x
2. Step 2: Convert to fraction form
   2,945.61/4,068.56 = 2,202.88/x
3. Step 3: Cross multiply
   2,945.61x = 4,068.56 × 2,202.88
4. Step 4: Simplify right side
   2,945.61x = 8,962,528.27
5. Step 5: Solve for x
   x = 8,962,528.27/2,945.61
6. Step 6: Final answer
   x = 3,042.67