Finding the Fourth Proportional to 2,219.10, 3,062.51 and 1,224.55

Step by Step Solution

1. Step 1: Write the proportion equation
   2,219.10 : 3,062.51 = 1,224.55 : x
2. Step 2: Convert to fraction form
   2,219.10/3,062.51 = 1,224.55/x
3. Step 3: Cross multiply
   2,219.10x = 3,062.51 × 1,224.55
4. Step 4: Simplify right side
   2,219.10x = 3,750,196.62
5. Step 5: Solve for x
   x = 3,750,196.62/2,219.10
6. Step 6: Final answer
   x = 1,689.96