Finding the Fourth Proportional to 2,078.37, 3,118.08 and 1,708.79

Step by Step Solution

1. Step 1: Write the proportion equation
   2,078.37 : 3,118.08 = 1,708.79 : x
2. Step 2: Convert to fraction form
   2,078.37/3,118.08 = 1,708.79/x
3. Step 3: Cross multiply
   2,078.37x = 3,118.08 × 1,708.79
4. Step 4: Simplify right side
   2,078.37x = 5,328,128.33
5. Step 5: Solve for x
   x = 5,328,128.33/2,078.37
6. Step 6: Final answer
   x = 2,563.61