Finding the Fourth Proportional to 2,227.72, 3,339.34 and 1,055.62

Step by Step Solution

1. Step 1: Write the proportion equation
   2,227.72 : 3,339.34 = 1,055.62 : x
2. Step 2: Convert to fraction form
   2,227.72/3,339.34 = 1,055.62/x
3. Step 3: Cross multiply
   2,227.72x = 3,339.34 × 1,055.62
4. Step 4: Simplify right side
   2,227.72x = 3,525,074.09
5. Step 5: Solve for x
   x = 3,525,074.09/2,227.72
6. Step 6: Final answer
   x = 1,582.37