Finding the Fourth Proportional to 2,109.05, 2,914.20 and 1,522.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,109.05 : 2,914.20 = 1,522.20 : x
2. Step 2: Convert to fraction form
   2,109.05/2,914.20 = 1,522.20/x
3. Step 3: Cross multiply
   2,109.05x = 2,914.20 × 1,522.20
4. Step 4: Simplify right side
   2,109.05x = 4,435,995.24
5. Step 5: Solve for x
   x = 4,435,995.24/2,109.05
6. Step 6: Final answer
   x = 2,103.31