Finding the Fourth Proportional to 2,080.15, 3,120.59 and 848.23

Step by Step Solution

1. Step 1: Write the proportion equation
   2,080.15 : 3,120.59 = 848.23 : x
2. Step 2: Convert to fraction form
   2,080.15/3,120.59 = 848.23/x
3. Step 3: Cross multiply
   2,080.15x = 3,120.59 × 848.23
4. Step 4: Simplify right side
   2,080.15x = 2,646,978.06
5. Step 5: Solve for x
   x = 2,646,978.06/2,080.15
6. Step 6: Final answer
   x = 1,272.49