Finding the Fourth Proportional to 7,200.86, 10,802.73 and 2,818.94

Step by Step Solution

1. Step 1: Write the proportion equation
   7,200.86 : 10,802.73 = 2,818.94 : x
2. Step 2: Convert to fraction form
   7,200.86/10,802.73 = 2,818.94/x
3. Step 3: Cross multiply
   7,200.86x = 10,802.73 × 2,818.94
4. Step 4: Simplify right side
   7,200.86x = 30,452,247.71
5. Step 5: Solve for x
   x = 30,452,247.71/7,200.86
6. Step 6: Final answer
   x = 4,228.97