Finding the Fourth Proportional to 3,807.56, 5,705.82 and 1,857.56

Step by Step Solution

1. Step 1: Write the proportion equation
   3,807.56 : 5,705.82 = 1,857.56 : x
2. Step 2: Convert to fraction form
   3,807.56/5,705.82 = 1,857.56/x
3. Step 3: Cross multiply
   3,807.56x = 5,705.82 × 1,857.56
4. Step 4: Simplify right side
   3,807.56x = 10,598,903.00
5. Step 5: Solve for x
   x = 10,598,903.00/3,807.56
6. Step 6: Final answer
   x = 2,783.65