Finding the Fourth Proportional to 2,104.24, 2,904.02 and 1,172.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,104.24 : 2,904.02 = 1,172.76 : x
2. Step 2: Convert to fraction form
   2,104.24/2,904.02 = 1,172.76/x
3. Step 3: Cross multiply
   2,104.24x = 2,904.02 × 1,172.76
4. Step 4: Simplify right side
   2,104.24x = 3,405,718.50
5. Step 5: Solve for x
   x = 3,405,718.50/2,104.24
6. Step 6: Final answer
   x = 1,618.50