Finding the Fourth Proportional to 2,217.73, 3,061.70 and 1,619.63

Step by Step Solution

1. Step 1: Write the proportion equation
   2,217.73 : 3,061.70 = 1,619.63 : x
2. Step 2: Convert to fraction form
   2,217.73/3,061.70 = 1,619.63/x
3. Step 3: Cross multiply
   2,217.73x = 3,061.70 × 1,619.63
4. Step 4: Simplify right side
   2,217.73x = 4,958,797.76
5. Step 5: Solve for x
   x = 4,958,797.76/2,217.73
6. Step 6: Final answer
   x = 2,235.98