Finding the Fourth Proportional to 2,049.48, 3,071.88 and 879.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,049.48 : 3,071.88 = 879.12 : x
2. Step 2: Convert to fraction form
   2,049.48/3,071.88 = 879.12/x
3. Step 3: Cross multiply
   2,049.48x = 3,071.88 × 879.12
4. Step 4: Simplify right side
   2,049.48x = 2,700,551.15
5. Step 5: Solve for x
   x = 2,700,551.15/2,049.48
6. Step 6: Final answer
   x = 1,317.68