Finding the Fourth Proportional to 2,114.40, 3,172.05 and 1,074.54

Step by Step Solution

1. Step 1: Write the proportion equation
   2,114.40 : 3,172.05 = 1,074.54 : x
2. Step 2: Convert to fraction form
   2,114.40/3,172.05 = 1,074.54/x
3. Step 3: Cross multiply
   2,114.40x = 3,172.05 × 1,074.54
4. Step 4: Simplify right side
   2,114.40x = 3,408,494.61
5. Step 5: Solve for x
   x = 3,408,494.61/2,114.40
6. Step 6: Final answer
   x = 1,612.04