Finding the Fourth Proportional to 2,048.10, 3,071.81 and 878.29

Step by Step Solution

1. Step 1: Write the proportion equation
   2,048.10 : 3,071.81 = 878.29 : x
2. Step 2: Convert to fraction form
   2,048.10/3,071.81 = 878.29/x
3. Step 3: Cross multiply
   2,048.10x = 3,071.81 × 878.29
4. Step 4: Simplify right side
   2,048.10x = 2,697,946.04
5. Step 5: Solve for x
   x = 2,697,946.04/2,048.10
6. Step 6: Final answer
   x = 1,317.29