Finding the Fourth Proportional to 2,103.46, 2,902.39 and 1,219.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,103.46 : 2,902.39 = 1,219.10 : x
2. Step 2: Convert to fraction form
   2,103.46/2,902.39 = 1,219.10/x
3. Step 3: Cross multiply
   2,103.46x = 2,902.39 × 1,219.10
4. Step 4: Simplify right side
   2,103.46x = 3,538,286.09
5. Step 5: Solve for x
   x = 3,538,286.09/2,103.46
6. Step 6: Final answer
   x = 1,682.13