Finding the Fourth Proportional to 2,605.89, 3,907.44 and 1,143.33

Step by Step Solution

1. Step 1: Write the proportion equation
   2,605.89 : 3,907.44 = 1,143.33 : x
2. Step 2: Convert to fraction form
   2,605.89/3,907.44 = 1,143.33/x
3. Step 3: Cross multiply
   2,605.89x = 3,907.44 × 1,143.33
4. Step 4: Simplify right side
   2,605.89x = 4,467,493.38
5. Step 5: Solve for x
   x = 4,467,493.38/2,605.89
6. Step 6: Final answer
   x = 1,714.38