Finding the Fourth Proportional to 2,017.07, 2,783.51 and 1,120.81

Step by Step Solution

1. Step 1: Write the proportion equation
   2,017.07 : 2,783.51 = 1,120.81 : x
2. Step 2: Convert to fraction form
   2,017.07/2,783.51 = 1,120.81/x
3. Step 3: Cross multiply
   2,017.07x = 2,783.51 × 1,120.81
4. Step 4: Simplify right side
   2,017.07x = 3,119,781.69
5. Step 5: Solve for x
   x = 3,119,781.69/2,017.07
6. Step 6: Final answer
   x = 1,546.69