Finding the Fourth Proportional to 2,080.27, 3,116.22 and 985.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,080.27 : 3,116.22 = 985.69 : x
2. Step 2: Convert to fraction form
   2,080.27/3,116.22 = 985.69/x
3. Step 3: Cross multiply
   2,080.27x = 3,116.22 × 985.69
4. Step 4: Simplify right side
   2,080.27x = 3,071,626.89
5. Step 5: Solve for x
   x = 3,071,626.89/2,080.27
6. Step 6: Final answer
   x = 1,476.55