Finding the Fourth Proportional to 2,114.47, 3,172.29 and 1,074.43

Step by Step Solution

1. Step 1: Write the proportion equation
   2,114.47 : 3,172.29 = 1,074.43 : x
2. Step 2: Convert to fraction form
   2,114.47/3,172.29 = 1,074.43/x
3. Step 3: Cross multiply
   2,114.47x = 3,172.29 × 1,074.43
4. Step 4: Simplify right side
   2,114.47x = 3,408,403.54
5. Step 5: Solve for x
   x = 3,408,403.54/2,114.47
6. Step 6: Final answer
   x = 1,611.94