Finding the Fourth Proportional to 2,017.05, 3,024.81 and 1,138.61

Step by Step Solution

1. Step 1: Write the proportion equation
   2,017.05 : 3,024.81 = 1,138.61 : x
2. Step 2: Convert to fraction form
   2,017.05/3,024.81 = 1,138.61/x
3. Step 3: Cross multiply
   2,017.05x = 3,024.81 × 1,138.61
4. Step 4: Simplify right side
   2,017.05x = 3,444,063.79
5. Step 5: Solve for x
   x = 3,444,063.79/2,017.05
6. Step 6: Final answer
   x = 1,707.48