Finding the Fourth Proportional to 2,079.29, 3,116.24 and 845.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,079.29 : 3,116.24 = 845.25 : x
2. Step 2: Convert to fraction form
   2,079.29/3,116.24 = 845.25/x
3. Step 3: Cross multiply
   2,079.29x = 3,116.24 × 845.25
4. Step 4: Simplify right side
   2,079.29x = 2,633,997.63
5. Step 5: Solve for x
   x = 2,633,997.63/2,079.29
6. Step 6: Final answer
   x = 1,266.78