Finding the Fourth Proportional to 1,190.69, 1,642.32 and 1,168.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,190.69 : 1,642.32 = 1,168.82 : x
2. Step 2: Convert to fraction form
   1,190.69/1,642.32 = 1,168.82/x
3. Step 3: Cross multiply
   1,190.69x = 1,642.32 × 1,168.82
4. Step 4: Simplify right side
   1,190.69x = 1,919,568.25
5. Step 5: Solve for x
   x = 1,919,568.25/1,190.69
6. Step 6: Final answer
   x = 1,612.15