Finding the Fourth Proportional to 3,580.50, 5,364.49 and 2,485.56

Step by Step Solution

1. Step 1: Write the proportion equation
   3,580.50 : 5,364.49 = 2,485.56 : x
2. Step 2: Convert to fraction form
   3,580.50/5,364.49 = 2,485.56/x
3. Step 3: Cross multiply
   3,580.50x = 5,364.49 × 2,485.56
4. Step 4: Simplify right side
   3,580.50x = 13,333,761.76
5. Step 5: Solve for x
   x = 13,333,761.76/3,580.50
6. Step 6: Final answer
   x = 3,723.99