Finding the Fourth Proportional to 2,105.07, 3,156 and 1,008.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,105.07 : 3,156 = 1,008.38 : x
2. Step 2: Convert to fraction form
   2,105.07/3,156 = 1,008.38/x
3. Step 3: Cross multiply
   2,105.07x = 3,156 × 1,008.38
4. Step 4: Simplify right side
   2,105.07x = 3,182,431.50
5. Step 5: Solve for x
   x = 3,182,431.50/2,105.07
6. Step 6: Final answer
   x = 1,511.79