Finding the Fourth Proportional to 2,057.62, 3,082.51 and 1,222.91

Step by Step Solution

1. Step 1: Write the proportion equation
   2,057.62 : 3,082.51 = 1,222.91 : x
2. Step 2: Convert to fraction form
   2,057.62/3,082.51 = 1,222.91/x
3. Step 3: Cross multiply
   2,057.62x = 3,082.51 × 1,222.91
4. Step 4: Simplify right side
   2,057.62x = 3,769,632.30
5. Step 5: Solve for x
   x = 3,769,632.30/2,057.62
6. Step 6: Final answer
   x = 1,832.04