Finding the Fourth Proportional to 2,103.39, 2,902.47 and 1,219.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,103.39 : 2,902.47 = 1,219.48 : x
2. Step 2: Convert to fraction form
   2,103.39/2,902.47 = 1,219.48/x
3. Step 3: Cross multiply
   2,103.39x = 2,902.47 × 1,219.48
4. Step 4: Simplify right side
   2,103.39x = 3,539,504.12
5. Step 5: Solve for x
   x = 3,539,504.12/2,103.39
6. Step 6: Final answer
   x = 1,682.76