Finding the Fourth Proportional to 2,938.22, 4,053.92 and 1,890.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,938.22 : 4,053.92 = 1,890.89 : x
2. Step 2: Convert to fraction form
   2,938.22/4,053.92 = 1,890.89/x
3. Step 3: Cross multiply
   2,938.22x = 4,053.92 × 1,890.89
4. Step 4: Simplify right side
   2,938.22x = 7,665,487.06
5. Step 5: Solve for x
   x = 7,665,487.06/2,938.22
6. Step 6: Final answer
   x = 2,608.89