Finding the Fourth Proportional to 2,238.22, 3,089.56 and 1,922.21

Step by Step Solution

1. Step 1: Write the proportion equation
   2,238.22 : 3,089.56 = 1,922.21 : x
2. Step 2: Convert to fraction form
   2,238.22/3,089.56 = 1,922.21/x
3. Step 3: Cross multiply
   2,238.22x = 3,089.56 × 1,922.21
4. Step 4: Simplify right side
   2,238.22x = 5,938,783.13
5. Step 5: Solve for x
   x = 5,938,783.13/2,238.22
6. Step 6: Final answer
   x = 2,653.35