Finding the Fourth Proportional to 2,920.73, 4,360.30 and 2,818.22

Step by Step Solution

1. Step 1: Write the proportion equation
   2,920.73 : 4,360.30 = 2,818.22 : x
2. Step 2: Convert to fraction form
   2,920.73/4,360.30 = 2,818.22/x
3. Step 3: Cross multiply
   2,920.73x = 4,360.30 × 2,818.22
4. Step 4: Simplify right side
   2,920.73x = 12,288,255.82
5. Step 5: Solve for x
   x = 12,288,255.82/2,920.73
6. Step 6: Final answer
   x = 4,207.26