Finding the Fourth Proportional to 1,857.83, 2,563.83 and 1,018.51

Step by Step Solution

1. Step 1: Write the proportion equation
   1,857.83 : 2,563.83 = 1,018.51 : x
2. Step 2: Convert to fraction form
   1,857.83/2,563.83 = 1,018.51/x
3. Step 3: Cross multiply
   1,857.83x = 2,563.83 × 1,018.51
4. Step 4: Simplify right side
   1,857.83x = 2,611,286.49
5. Step 5: Solve for x
   x = 2,611,286.49/1,857.83
6. Step 6: Final answer
   x = 1,405.56