Finding the Fourth Proportional to 1,798.69, 2,480.79 and 1,169.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,798.69 : 2,480.79 = 1,169.42 : x
2. Step 2: Convert to fraction form
   1,798.69/2,480.79 = 1,169.42/x
3. Step 3: Cross multiply
   1,798.69x = 2,480.79 × 1,169.42
4. Step 4: Simplify right side
   1,798.69x = 2,901,081.51
5. Step 5: Solve for x
   x = 2,901,081.51/1,798.69
6. Step 6: Final answer
   x = 1,612.89