Finding the Fourth Proportional to 2,104.62, 2,904.27 and 1,172.94

Step by Step Solution

1. Step 1: Write the proportion equation
   2,104.62 : 2,904.27 = 1,172.94 : x
2. Step 2: Convert to fraction form
   2,104.62/2,904.27 = 1,172.94/x
3. Step 3: Cross multiply
   2,104.62x = 2,904.27 × 1,172.94
4. Step 4: Simplify right side
   2,104.62x = 3,406,534.45
5. Step 5: Solve for x
   x = 3,406,534.45/2,104.62
6. Step 6: Final answer
   x = 1,618.60