Finding the Fourth Proportional to 2,113.05, 3,170.29 and 1,190.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,113.05 : 3,170.29 = 1,190.42 : x
2. Step 2: Convert to fraction form
   2,113.05/3,170.29 = 1,190.42/x
3. Step 3: Cross multiply
   2,113.05x = 3,170.29 × 1,190.42
4. Step 4: Simplify right side
   2,113.05x = 3,773,976.62
5. Step 5: Solve for x
   x = 3,773,976.62/2,113.05
6. Step 6: Final answer
   x = 1,786.03