Finding the Fourth Proportional to 2,118.41, 3,179.57 and 1,079.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,118.41 : 3,179.57 = 1,079.16 : x
2. Step 2: Convert to fraction form
   2,118.41/3,179.57 = 1,079.16/x
3. Step 3: Cross multiply
   2,118.41x = 3,179.57 × 1,079.16
4. Step 4: Simplify right side
   2,118.41x = 3,431,253.51
5. Step 5: Solve for x
   x = 3,431,253.51/2,118.41
6. Step 6: Final answer
   x = 1,619.73