Finding the Fourth Proportional to 3,116.19, 4,291.60 and 3,048.15

Step by Step Solution

1. Step 1: Write the proportion equation
   3,116.19 : 4,291.60 = 3,048.15 : x
2. Step 2: Convert to fraction form
   3,116.19/4,291.60 = 3,048.15/x
3. Step 3: Cross multiply
   3,116.19x = 4,291.60 × 3,048.15
4. Step 4: Simplify right side
   3,116.19x = 13,081,449.01
5. Step 5: Solve for x
   x = 13,081,449.01/3,116.19
6. Step 6: Final answer
   x = 4,197.89