Finding the Fourth Proportional to 2,185.32, 3,015.56 and 1,190.58

Step by Step Solution

1. Step 1: Write the proportion equation
   2,185.32 : 3,015.56 = 1,190.58 : x
2. Step 2: Convert to fraction form
   2,185.32/3,015.56 = 1,190.58/x
3. Step 3: Cross multiply
   2,185.32x = 3,015.56 × 1,190.58
4. Step 4: Simplify right side
   2,185.32x = 3,590,265.42
5. Step 5: Solve for x
   x = 3,590,265.42/2,185.32
6. Step 6: Final answer
   x = 1,642.90