Finding the Fourth Proportional to 2,080.48, 3,119.86 and 847.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,080.48 : 3,119.86 = 847.05 : x
2. Step 2: Convert to fraction form
   2,080.48/3,119.86 = 847.05/x
3. Step 3: Cross multiply
   2,080.48x = 3,119.86 × 847.05
4. Step 4: Simplify right side
   2,080.48x = 2,642,673.18
5. Step 5: Solve for x
   x = 2,642,673.18/2,080.48
6. Step 6: Final answer
   x = 1,270.23