Finding the Fourth Proportional to 2,076.56, 2,864.36 and 1,236.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,076.56 : 2,864.36 = 1,236.69 : x
2. Step 2: Convert to fraction form
   2,076.56/2,864.36 = 1,236.69/x
3. Step 3: Cross multiply
   2,076.56x = 2,864.36 × 1,236.69
4. Step 4: Simplify right side
   2,076.56x = 3,542,328.46
5. Step 5: Solve for x
   x = 3,542,328.46/2,076.56
6. Step 6: Final answer
   x = 1,705.86