Finding the Fourth Proportional to 2,231.88, 3,342.78 and 1,190.04

Step by Step Solution

1. Step 1: Write the proportion equation
   2,231.88 : 3,342.78 = 1,190.04 : x
2. Step 2: Convert to fraction form
   2,231.88/3,342.78 = 1,190.04/x
3. Step 3: Cross multiply
   2,231.88x = 3,342.78 × 1,190.04
4. Step 4: Simplify right side
   2,231.88x = 3,978,041.91
5. Step 5: Solve for x
   x = 3,978,041.91/2,231.88
6. Step 6: Final answer
   x = 1,782.37