Finding the Fourth Proportional to 2,104.59, 2,904.33 and 1,173.09

Step by Step Solution

1. Step 1: Write the proportion equation
   2,104.59 : 2,904.33 = 1,173.09 : x
2. Step 2: Convert to fraction form
   2,104.59/2,904.33 = 1,173.09/x
3. Step 3: Cross multiply
   2,104.59x = 2,904.33 × 1,173.09
4. Step 4: Simplify right side
   2,104.59x = 3,407,040.48
5. Step 5: Solve for x
   x = 3,407,040.48/2,104.59
6. Step 6: Final answer
   x = 1,618.86