Finding the Fourth Proportional to 2,617.45, 3,921.49 and 1,382.09

Step by Step Solution

1. Step 1: Write the proportion equation
   2,617.45 : 3,921.49 = 1,382.09 : x
2. Step 2: Convert to fraction form
   2,617.45/3,921.49 = 1,382.09/x
3. Step 3: Cross multiply
   2,617.45x = 3,921.49 × 1,382.09
4. Step 4: Simplify right side
   2,617.45x = 5,419,858.46
5. Step 5: Solve for x
   x = 5,419,858.46/2,617.45
6. Step 6: Final answer
   x = 2,070.67