Finding the Fourth Proportional to 2,786.78, 3,845.81 and 1,527.75

Step by Step Solution

1. Step 1: Write the proportion equation
   2,786.78 : 3,845.81 = 1,527.75 : x
2. Step 2: Convert to fraction form
   2,786.78/3,845.81 = 1,527.75/x
3. Step 3: Cross multiply
   2,786.78x = 3,845.81 × 1,527.75
4. Step 4: Simplify right side
   2,786.78x = 5,875,436.23
5. Step 5: Solve for x
   x = 5,875,436.23/2,786.78
6. Step 6: Final answer
   x = 2,108.32