Finding the Fourth Proportional to 3,458.69, 5,186.84 and 1,118.09

Step by Step Solution

1. Step 1: Write the proportion equation
   3,458.69 : 5,186.84 = 1,118.09 : x
2. Step 2: Convert to fraction form
   3,458.69/5,186.84 = 1,118.09/x
3. Step 3: Cross multiply
   3,458.69x = 5,186.84 × 1,118.09
4. Step 4: Simplify right side
   3,458.69x = 5,799,348.35
5. Step 5: Solve for x
   x = 5,799,348.35/3,458.69
6. Step 6: Final answer
   x = 1,676.75