Finding the Fourth Proportional to 2,938.69, 4,408.29 and 1,089.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,938.69 : 4,408.29 = 1,089.82 : x
2. Step 2: Convert to fraction form
   2,938.69/4,408.29 = 1,089.82/x
3. Step 3: Cross multiply
   2,938.69x = 4,408.29 × 1,089.82
4. Step 4: Simplify right side
   2,938.69x = 4,804,248.12
5. Step 5: Solve for x
   x = 4,804,248.12/2,938.69
6. Step 6: Final answer
   x = 1,634.83