Finding the Fourth Proportional to 2,224.58, 3,069.64 and 1,229.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,224.58 : 3,069.64 = 1,229.72 : x
2. Step 2: Convert to fraction form
   2,224.58/3,069.64 = 1,229.72/x
3. Step 3: Cross multiply
   2,224.58x = 3,069.64 × 1,229.72
4. Step 4: Simplify right side
   2,224.58x = 3,774,783.89
5. Step 5: Solve for x
   x = 3,774,783.89/2,224.58
6. Step 6: Final answer
   x = 1,696.86