Finding the Fourth Proportional to 3,532.68, 5,300.55 and 2,219.49

Step by Step Solution

1. Step 1: Write the proportion equation
   3,532.68 : 5,300.55 = 2,219.49 : x
2. Step 2: Convert to fraction form
   3,532.68/5,300.55 = 2,219.49/x
3. Step 3: Cross multiply
   3,532.68x = 5,300.55 × 2,219.49
4. Step 4: Simplify right side
   3,532.68x = 11,764,517.72
5. Step 5: Solve for x
   x = 11,764,517.72/3,532.68
6. Step 6: Final answer
   x = 3,330.20