Finding the Fourth Proportional to 2,279.76, 3,146.85 and 1,335.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,279.76 : 3,146.85 = 1,335.86 : x
2. Step 2: Convert to fraction form
   2,279.76/3,146.85 = 1,335.86/x
3. Step 3: Cross multiply
   2,279.76x = 3,146.85 × 1,335.86
4. Step 4: Simplify right side
   2,279.76x = 4,203,735.31
5. Step 5: Solve for x
   x = 4,203,735.31/2,279.76
6. Step 6: Final answer
   x = 1,843.94