Finding the Fourth Proportional to 2,379.49, 3,280.20 and 1,669.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,379.49 : 3,280.20 = 1,669.18 : x
2. Step 2: Convert to fraction form
   2,379.49/3,280.20 = 1,669.18/x
3. Step 3: Cross multiply
   2,379.49x = 3,280.20 × 1,669.18
4. Step 4: Simplify right side
   2,379.49x = 5,475,236.04
5. Step 5: Solve for x
   x = 5,475,236.04/2,379.49
6. Step 6: Final answer
   x = 2,301.01