Finding the Fourth Proportional to 2,219.32, 3,062.32 and 1,224.55

Step by Step Solution

1. Step 1: Write the proportion equation
   2,219.32 : 3,062.32 = 1,224.55 : x
2. Step 2: Convert to fraction form
   2,219.32/3,062.32 = 1,224.55/x
3. Step 3: Cross multiply
   2,219.32x = 3,062.32 × 1,224.55
4. Step 4: Simplify right side
   2,219.32x = 3,749,963.96
5. Step 5: Solve for x
   x = 3,749,963.96/2,219.32
6. Step 6: Final answer
   x = 1,689.69