Finding the Fourth Proportional to 2,028.45, 3,038.62 and 1,857.14

Step by Step Solution

1. Step 1: Write the proportion equation
   2,028.45 : 3,038.62 = 1,857.14 : x
2. Step 2: Convert to fraction form
   2,028.45/3,038.62 = 1,857.14/x
3. Step 3: Cross multiply
   2,028.45x = 3,038.62 × 1,857.14
4. Step 4: Simplify right side
   2,028.45x = 5,643,127.55
5. Step 5: Solve for x
   x = 5,643,127.55/2,028.45
6. Step 6: Final answer
   x = 2,781.99