Finding the Fourth Proportional to 2,104.75, 2,904.56 and 1,173.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,104.75 : 2,904.56 = 1,173.25 : x
2. Step 2: Convert to fraction form
   2,104.75/2,904.56 = 1,173.25/x
3. Step 3: Cross multiply
   2,104.75x = 2,904.56 × 1,173.25
4. Step 4: Simplify right side
   2,104.75x = 3,407,769.15
5. Step 5: Solve for x
   x = 3,407,769.15/2,104.75
6. Step 6: Final answer
   x = 1,619.09