Finding the Fourth Proportional to 2,938.82, 4,408.83 and 1,089.95

Step by Step Solution

1. Step 1: Write the proportion equation
   2,938.82 : 4,408.83 = 1,089.95 : x
2. Step 2: Convert to fraction form
   2,938.82/4,408.83 = 1,089.95/x
3. Step 3: Cross multiply
   2,938.82x = 4,408.83 × 1,089.95
4. Step 4: Simplify right side
   2,938.82x = 4,805,382.21
5. Step 5: Solve for x
   x = 4,805,382.21/2,938.82
6. Step 6: Final answer
   x = 1,635.14