Finding the Fourth Proportional to 2,149.53, 3,218.82 and 1,416.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,149.53 : 3,218.82 = 1,416.89 : x
2. Step 2: Convert to fraction form
   2,149.53/3,218.82 = 1,416.89/x
3. Step 3: Cross multiply
   2,149.53x = 3,218.82 × 1,416.89
4. Step 4: Simplify right side
   2,149.53x = 4,560,697.78
5. Step 5: Solve for x
   x = 4,560,697.78/2,149.53
6. Step 6: Final answer
   x = 2,121.72