Finding the Fourth Proportional to 2,103.06, 3,153.21 and 1,008.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,103.06 : 3,153.21 = 1,008.05 : x
2. Step 2: Convert to fraction form
   2,103.06/3,153.21 = 1,008.05/x
3. Step 3: Cross multiply
   2,103.06x = 3,153.21 × 1,008.05
4. Step 4: Simplify right side
   2,103.06x = 3,178,577.57
5. Step 5: Solve for x
   x = 3,178,577.57/2,103.06
6. Step 6: Final answer
   x = 1,511.41