Finding the Fourth Proportional to 3,826.90, 5,738.82 and 1,328.32

Step by Step Solution

1. Step 1: Write the proportion equation
   3,826.90 : 5,738.82 = 1,328.32 : x
2. Step 2: Convert to fraction form
   3,826.90/5,738.82 = 1,328.32/x
3. Step 3: Cross multiply
   3,826.90x = 5,738.82 × 1,328.32
4. Step 4: Simplify right side
   3,826.90x = 7,622,989.38
5. Step 5: Solve for x
   x = 7,622,989.38/3,826.90
6. Step 6: Final answer
   x = 1,991.95