Finding the Fourth Proportional to 2,180.22, 3,008.52 and 1,236.21

Step by Step Solution

1. Step 1: Write the proportion equation
   2,180.22 : 3,008.52 = 1,236.21 : x
2. Step 2: Convert to fraction form
   2,180.22/3,008.52 = 1,236.21/x
3. Step 3: Cross multiply
   2,180.22x = 3,008.52 × 1,236.21
4. Step 4: Simplify right side
   2,180.22x = 3,719,162.51
5. Step 5: Solve for x
   x = 3,719,162.51/2,180.22
6. Step 6: Final answer
   x = 1,705.87