Finding the Fourth Proportional to 2,111.43, 3,167.05 and 1,418.39

Step by Step Solution

1. Step 1: Write the proportion equation
   2,111.43 : 3,167.05 = 1,418.39 : x
2. Step 2: Convert to fraction form
   2,111.43/3,167.05 = 1,418.39/x
3. Step 3: Cross multiply
   2,111.43x = 3,167.05 × 1,418.39
4. Step 4: Simplify right side
   2,111.43x = 4,492,112.05
5. Step 5: Solve for x
   x = 4,492,112.05/2,111.43
6. Step 6: Final answer
   x = 2,127.52