Finding the Fourth Proportional to 3,060.56, 4,223.94 and 1,818.56

Step by Step Solution

1. Step 1: Write the proportion equation
   3,060.56 : 4,223.94 = 1,818.56 : x
2. Step 2: Convert to fraction form
   3,060.56/4,223.94 = 1,818.56/x
3. Step 3: Cross multiply
   3,060.56x = 4,223.94 × 1,818.56
4. Step 4: Simplify right side
   3,060.56x = 7,681,498.89
5. Step 5: Solve for x
   x = 7,681,498.89/3,060.56
6. Step 6: Final answer
   x = 2,509.83