Finding the Fourth Proportional to 2,185.14, 3,015.49 and 1,190.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,185.14 : 3,015.49 = 1,190.42 : x
2. Step 2: Convert to fraction form
   2,185.14/3,015.49 = 1,190.42/x
3. Step 3: Cross multiply
   2,185.14x = 3,015.49 × 1,190.42
4. Step 4: Simplify right side
   2,185.14x = 3,589,684.53
5. Step 5: Solve for x
   x = 3,589,684.53/2,185.14
6. Step 6: Final answer
   x = 1,642.77