Finding the Fourth Proportional to 2,561.43, 3,841.05 and 1,079.68

Step by Step Solution

1. Step 1: Write the proportion equation
   2,561.43 : 3,841.05 = 1,079.68 : x
2. Step 2: Convert to fraction form
   2,561.43/3,841.05 = 1,079.68/x
3. Step 3: Cross multiply
   2,561.43x = 3,841.05 × 1,079.68
4. Step 4: Simplify right side
   2,561.43x = 4,147,104.86
5. Step 5: Solve for x
   x = 4,147,104.86/2,561.43
6. Step 6: Final answer
   x = 1,619.06