Finding the Fourth Proportional to 1,768.69, 2,441.12 and 1,171.19

Step by Step Solution

1. Step 1: Write the proportion equation
   1,768.69 : 2,441.12 = 1,171.19 : x
2. Step 2: Convert to fraction form
   1,768.69/2,441.12 = 1,171.19/x
3. Step 3: Cross multiply
   1,768.69x = 2,441.12 × 1,171.19
4. Step 4: Simplify right side
   1,768.69x = 2,859,018.26
5. Step 5: Solve for x
   x = 2,859,018.26/1,768.69
6. Step 6: Final answer
   x = 1,616.47