Finding the Fourth Proportional to 2,165.94, 3,244.05 and 1,189.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,165.94 : 3,244.05 = 1,189.89 : x
2. Step 2: Convert to fraction form
   2,165.94/3,244.05 = 1,189.89/x
3. Step 3: Cross multiply
   2,165.94x = 3,244.05 × 1,189.89
4. Step 4: Simplify right side
   2,165.94x = 3,860,062.65
5. Step 5: Solve for x
   x = 3,860,062.65/2,165.94
6. Step 6: Final answer
   x = 1,782.17