Finding the Fourth Proportional to 2,229.62, 3,077.22 and 1,345.55

Step by Step Solution

1. Step 1: Write the proportion equation
   2,229.62 : 3,077.22 = 1,345.55 : x
2. Step 2: Convert to fraction form
   2,229.62/3,077.22 = 1,345.55/x
3. Step 3: Cross multiply
   2,229.62x = 3,077.22 × 1,345.55
4. Step 4: Simplify right side
   2,229.62x = 4,140,537.98
5. Step 5: Solve for x
   x = 4,140,537.98/2,229.62
6. Step 6: Final answer
   x = 1,857.06