Finding the Fourth Proportional to 2,103.37, 2,902.63 and 1,219.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,103.37 : 2,902.63 = 1,219.15 : x
2. Step 2: Convert to fraction form
   2,103.37/2,902.63 = 1,219.15/x
3. Step 3: Cross multiply
   2,103.37x = 2,902.63 × 1,219.15
4. Step 4: Simplify right side
   2,103.37x = 3,538,741.36
5. Step 5: Solve for x
   x = 3,538,741.36/2,103.37
6. Step 6: Final answer
   x = 1,682.42