Finding the Fourth Proportional to 2,080.79, 3,118.49 and 846.75

Step by Step Solution

1. Step 1: Write the proportion equation
   2,080.79 : 3,118.49 = 846.75 : x
2. Step 2: Convert to fraction form
   2,080.79/3,118.49 = 846.75/x
3. Step 3: Cross multiply
   2,080.79x = 3,118.49 × 846.75
4. Step 4: Simplify right side
   2,080.79x = 2,640,577.17
5. Step 5: Solve for x
   x = 2,640,577.17/2,080.79
6. Step 6: Final answer
   x = 1,269.03