Finding the Fourth Proportional to 2,386.82, 3,293.70 and 1,338.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,386.82 : 3,293.70 = 1,338.98 : x
2. Step 2: Convert to fraction form
   2,386.82/3,293.70 = 1,338.98/x
3. Step 3: Cross multiply
   2,386.82x = 3,293.70 × 1,338.98
4. Step 4: Simplify right side
   2,386.82x = 4,410,198.43
5. Step 5: Solve for x
   x = 4,410,198.43/2,386.82
6. Step 6: Final answer
   x = 1,847.73