Finding the Fourth Proportional to 2,109.43, 3,164.05 and 1,416.39

Step by Step Solution

1. Step 1: Write the proportion equation
   2,109.43 : 3,164.05 = 1,416.39 : x
2. Step 2: Convert to fraction form
   2,109.43/3,164.05 = 1,416.39/x
3. Step 3: Cross multiply
   2,109.43x = 3,164.05 × 1,416.39
4. Step 4: Simplify right side
   2,109.43x = 4,481,528.78
5. Step 5: Solve for x
   x = 4,481,528.78/2,109.43
6. Step 6: Final answer
   x = 2,124.52