Finding the Fourth Proportional to 2,080.23, 3,117.99 and 846.09

Step by Step Solution

1. Step 1: Write the proportion equation
   2,080.23 : 3,117.99 = 846.09 : x
2. Step 2: Convert to fraction form
   2,080.23/3,117.99 = 846.09/x
3. Step 3: Cross multiply
   2,080.23x = 3,117.99 × 846.09
4. Step 4: Simplify right side
   2,080.23x = 2,638,100.16
5. Step 5: Solve for x
   x = 2,638,100.16/2,080.23
6. Step 6: Final answer
   x = 1,268.18