Finding the Fourth Proportional to 2,219.39, 3,062.72 and 1,224.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,219.39 : 3,062.72 = 1,224.71 : x
2. Step 2: Convert to fraction form
   2,219.39/3,062.72 = 1,224.71/x
3. Step 3: Cross multiply
   2,219.39x = 3,062.72 × 1,224.71
4. Step 4: Simplify right side
   2,219.39x = 3,750,931.56
5. Step 5: Solve for x
   x = 3,750,931.56/2,219.39
6. Step 6: Final answer
   x = 1,690.08