Finding the Fourth Proportional to 2,219.73, 3,063.17 and 1,224.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,219.73 : 3,063.17 = 1,224.98 : x
2. Step 2: Convert to fraction form
   2,219.73/3,063.17 = 1,224.98/x
3. Step 3: Cross multiply
   2,219.73x = 3,063.17 × 1,224.98
4. Step 4: Simplify right side
   2,219.73x = 3,752,300.55
5. Step 5: Solve for x
   x = 3,752,300.55/2,219.73
6. Step 6: Final answer
   x = 1,690.43