Finding the Fourth Proportional to 2,104.86, 2,904.62 and 1,319.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,104.86 : 2,904.62 = 1,319.34 : x
2. Step 2: Convert to fraction form
   2,104.86/2,904.62 = 1,319.34/x
3. Step 3: Cross multiply
   2,104.86x = 2,904.62 × 1,319.34
4. Step 4: Simplify right side
   2,104.86x = 3,832,181.35
5. Step 5: Solve for x
   x = 3,832,181.35/2,104.86
6. Step 6: Final answer
   x = 1,820.63