Finding the Fourth Proportional to 2,080.69, 3,120.27 and 847.43

Step by Step Solution

1. Step 1: Write the proportion equation
   2,080.69 : 3,120.27 = 847.43 : x
2. Step 2: Convert to fraction form
   2,080.69/3,120.27 = 847.43/x
3. Step 3: Cross multiply
   2,080.69x = 3,120.27 × 847.43
4. Step 4: Simplify right side
   2,080.69x = 2,644,210.41
5. Step 5: Solve for x
   x = 2,644,210.41/2,080.69
6. Step 6: Final answer
   x = 1,270.83