Finding the Fourth Proportional to 2,622.05, 3,948.53 and 1,896.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,622.05 : 3,948.53 = 1,896.69 : x
2. Step 2: Convert to fraction form
   2,622.05/3,948.53 = 1,896.69/x
3. Step 3: Cross multiply
   2,622.05x = 3,948.53 × 1,896.69
4. Step 4: Simplify right side
   2,622.05x = 7,489,142.11
5. Step 5: Solve for x
   x = 7,489,142.11/2,622.05
6. Step 6: Final answer
   x = 2,856.22