Finding the Fourth Proportional to 8,290.72, 12,437.28 and 2,446.56

Step by Step Solution

1. Step 1: Write the proportion equation
   8,290.72 : 12,437.28 = 2,446.56 : x
2. Step 2: Convert to fraction form
   8,290.72/12,437.28 = 2,446.56/x
3. Step 3: Cross multiply
   8,290.72x = 12,437.28 × 2,446.56
4. Step 4: Simplify right side
   8,290.72x = 30,428,551.76
5. Step 5: Solve for x
   x = 30,428,551.76/8,290.72
6. Step 6: Final answer
   x = 3,670.19