Finding the Fourth Proportional to 2,008.18, 3,011.86 and 1,083.57

Step by Step Solution

1. Step 1: Write the proportion equation
   2,008.18 : 3,011.86 = 1,083.57 : x
2. Step 2: Convert to fraction form
   2,008.18/3,011.86 = 1,083.57/x
3. Step 3: Cross multiply
   2,008.18x = 3,011.86 × 1,083.57
4. Step 4: Simplify right side
   2,008.18x = 3,263,561.14
5. Step 5: Solve for x
   x = 3,263,561.14/2,008.18
6. Step 6: Final answer
   x = 1,625.13