Finding the Fourth Proportional to 7,222.41, 10,830.56 and 2,290.73

Step by Step Solution

1. Step 1: Write the proportion equation
   7,222.41 : 10,830.56 = 2,290.73 : x
2. Step 2: Convert to fraction form
   7,222.41/10,830.56 = 2,290.73/x
3. Step 3: Cross multiply
   7,222.41x = 10,830.56 × 2,290.73
4. Step 4: Simplify right side
   7,222.41x = 24,809,823.10
5. Step 5: Solve for x
   x = 24,809,823.10/7,222.41
6. Step 6: Final answer
   x = 3,435.12