Finding the Fourth Proportional to 2,214.72, 3,319.18 and 1,118.49

Step by Step Solution

1. Step 1: Write the proportion equation
   2,214.72 : 3,319.18 = 1,118.49 : x
2. Step 2: Convert to fraction form
   2,214.72/3,319.18 = 1,118.49/x
3. Step 3: Cross multiply
   2,214.72x = 3,319.18 × 1,118.49
4. Step 4: Simplify right side
   2,214.72x = 3,712,469.64
5. Step 5: Solve for x
   x = 3,712,469.64/2,214.72
6. Step 6: Final answer
   x = 1,676.27