Finding the Fourth Proportional to 2,079.30, 3,116.25 and 845.27

Step by Step Solution

1. Step 1: Write the proportion equation
   2,079.30 : 3,116.25 = 845.27 : x
2. Step 2: Convert to fraction form
   2,079.30/3,116.25 = 845.27/x
3. Step 3: Cross multiply
   2,079.30x = 3,116.25 × 845.27
4. Step 4: Simplify right side
   2,079.30x = 2,634,068.41
5. Step 5: Solve for x
   x = 2,634,068.41/2,079.30
6. Step 6: Final answer
   x = 1,266.81