Finding the Fourth Proportional to 2,279.03, 3,145.85 and 1,335.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,279.03 : 3,145.85 = 1,335.12 : x
2. Step 2: Convert to fraction form
   2,279.03/3,145.85 = 1,335.12/x
3. Step 3: Cross multiply
   2,279.03x = 3,145.85 × 1,335.12
4. Step 4: Simplify right side
   2,279.03x = 4,200,080.58
5. Step 5: Solve for x
   x = 4,200,080.58/2,279.03
6. Step 6: Final answer
   x = 1,842.92