Finding the Fourth Proportional to 2,180.66, 3,009.39 and 1,249.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,180.66 : 3,009.39 = 1,249.34 : x
2. Step 2: Convert to fraction form
   2,180.66/3,009.39 = 1,249.34/x
3. Step 3: Cross multiply
   2,180.66x = 3,009.39 × 1,249.34
4. Step 4: Simplify right side
   2,180.66x = 3,759,751.30
5. Step 5: Solve for x
   x = 3,759,751.30/2,180.66
6. Step 6: Final answer
   x = 1,724.13