Finding the Fourth Proportional to 2,048.35, 3,071.25 and 879.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,048.35 : 3,071.25 = 879.10 : x
2. Step 2: Convert to fraction form
   2,048.35/3,071.25 = 879.10/x
3. Step 3: Cross multiply
   2,048.35x = 3,071.25 × 879.10
4. Step 4: Simplify right side
   2,048.35x = 2,699,935.88
5. Step 5: Solve for x
   x = 2,699,935.88/2,048.35
6. Step 6: Final answer
   x = 1,318.10