Finding the Fourth Proportional to 3,061.28, 4,222.56 and 1,881.92

Step by Step Solution

1. Step 1: Write the proportion equation
   3,061.28 : 4,222.56 = 1,881.92 : x
2. Step 2: Convert to fraction form
   3,061.28/4,222.56 = 1,881.92/x
3. Step 3: Cross multiply
   3,061.28x = 4,222.56 × 1,881.92
4. Step 4: Simplify right side
   3,061.28x = 7,946,520.12
5. Step 5: Solve for x
   x = 7,946,520.12/3,061.28
6. Step 6: Final answer
   x = 2,595.82