Finding the Fourth Proportional to 3,700.89, 5,107.06 and 2,022.21

Step by Step Solution

1. Step 1: Write the proportion equation
   3,700.89 : 5,107.06 = 2,022.21 : x
2. Step 2: Convert to fraction form
   3,700.89/5,107.06 = 2,022.21/x
3. Step 3: Cross multiply
   3,700.89x = 5,107.06 × 2,022.21
4. Step 4: Simplify right side
   3,700.89x = 10,327,547.80
5. Step 5: Solve for x
   x = 10,327,547.80/3,700.89
6. Step 6: Final answer
   x = 2,790.56