Finding the Fourth Proportional to 2,174.68, 3,259.56 and 1,079.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,174.68 : 3,259.56 = 1,079.82 : x
2. Step 2: Convert to fraction form
   2,174.68/3,259.56 = 1,079.82/x
3. Step 3: Cross multiply
   2,174.68x = 3,259.56 × 1,079.82
4. Step 4: Simplify right side
   2,174.68x = 3,519,738.08
5. Step 5: Solve for x
   x = 3,519,738.08/2,174.68
6. Step 6: Final answer
   x = 1,618.51