Finding the Fourth Proportional to 2,017.76, 3,020.40 and 1,127.03

Step by Step Solution

1. Step 1: Write the proportion equation
   2,017.76 : 3,020.40 = 1,127.03 : x
2. Step 2: Convert to fraction form
   2,017.76/3,020.40 = 1,127.03/x
3. Step 3: Cross multiply
   2,017.76x = 3,020.40 × 1,127.03
4. Step 4: Simplify right side
   2,017.76x = 3,404,066.31
5. Step 5: Solve for x
   x = 3,404,066.31/2,017.76
6. Step 6: Final answer
   x = 1,687.06