Finding the Fourth Proportional to 2,103.81, 2,903.10 and 1,219.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,103.81 : 2,903.10 = 1,219.59 : x
2. Step 2: Convert to fraction form
   2,103.81/2,903.10 = 1,219.59/x
3. Step 3: Cross multiply
   2,103.81x = 2,903.10 × 1,219.59
4. Step 4: Simplify right side
   2,103.81x = 3,540,591.73
5. Step 5: Solve for x
   x = 3,540,591.73/2,103.81
6. Step 6: Final answer
   x = 1,682.94