Finding the Fourth Proportional to 2,103.71, 2,903.63 and 1,219.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,103.71 : 2,903.63 = 1,219.38 : x
2. Step 2: Convert to fraction form
   2,103.71/2,903.63 = 1,219.38/x
3. Step 3: Cross multiply
   2,103.71x = 2,903.63 × 1,219.38
4. Step 4: Simplify right side
   2,103.71x = 3,540,622.25
5. Step 5: Solve for x
   x = 3,540,622.25/2,103.71
6. Step 6: Final answer
   x = 1,683.04