Finding the Fourth Proportional to 2,279.85, 3,142.50 and 1,649.49

Step by Step Solution

1. Step 1: Write the proportion equation
   2,279.85 : 3,142.50 = 1,649.49 : x
2. Step 2: Convert to fraction form
   2,279.85/3,142.50 = 1,649.49/x
3. Step 3: Cross multiply
   2,279.85x = 3,142.50 × 1,649.49
4. Step 4: Simplify right side
   2,279.85x = 5,183,522.33
5. Step 5: Solve for x
   x = 5,183,522.33/2,279.85
6. Step 6: Final answer
   x = 2,273.62