Finding the Fourth Proportional to 2,104.10, 2,903.59 and 1,318.58

Step by Step Solution

1. Step 1: Write the proportion equation
   2,104.10 : 2,903.59 = 1,318.58 : x
2. Step 2: Convert to fraction form
   2,104.10/2,903.59 = 1,318.58/x
3. Step 3: Cross multiply
   2,104.10x = 2,903.59 × 1,318.58
4. Step 4: Simplify right side
   2,104.10x = 3,828,615.70
5. Step 5: Solve for x
   x = 3,828,615.70/2,104.10
6. Step 6: Final answer
   x = 1,819.60