Finding the Fourth Proportional to 2,180.35, 3,008.81 and 1,236.22

Step by Step Solution

1. Step 1: Write the proportion equation
   2,180.35 : 3,008.81 = 1,236.22 : x
2. Step 2: Convert to fraction form
   2,180.35/3,008.81 = 1,236.22/x
3. Step 3: Cross multiply
   2,180.35x = 3,008.81 × 1,236.22
4. Step 4: Simplify right side
   2,180.35x = 3,719,567.82
5. Step 5: Solve for x
   x = 3,719,567.82/2,180.35
6. Step 6: Final answer
   x = 1,705.95