Finding the Fourth Proportional to 2,230.89, 3,078.46 and 1,236.14

Step by Step Solution

1. Step 1: Write the proportion equation
   2,230.89 : 3,078.46 = 1,236.14 : x
2. Step 2: Convert to fraction form
   2,230.89/3,078.46 = 1,236.14/x
3. Step 3: Cross multiply
   2,230.89x = 3,078.46 × 1,236.14
4. Step 4: Simplify right side
   2,230.89x = 3,805,415.60
5. Step 5: Solve for x
   x = 3,805,415.60/2,230.89
6. Step 6: Final answer
   x = 1,705.79