Finding the Fourth Proportional to 2,180.37, 3,008.99 and 1,236.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,180.37 : 3,008.99 = 1,236.15 : x
2. Step 2: Convert to fraction form
   2,180.37/3,008.99 = 1,236.15/x
3. Step 3: Cross multiply
   2,180.37x = 3,008.99 × 1,236.15
4. Step 4: Simplify right side
   2,180.37x = 3,719,556.81
5. Step 5: Solve for x
   x = 3,719,556.81/2,180.37
6. Step 6: Final answer
   x = 1,705.93