Finding the Fourth Proportional to 2,979.20, 4,468.86 and 1,131.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,979.20 : 4,468.86 = 1,131.18 : x
2. Step 2: Convert to fraction form
   2,979.20/4,468.86 = 1,131.18/x
3. Step 3: Cross multiply
   2,979.20x = 4,468.86 × 1,131.18
4. Step 4: Simplify right side
   2,979.20x = 5,055,085.05
5. Step 5: Solve for x
   x = 5,055,085.05/2,979.20
6. Step 6: Final answer
   x = 1,696.79