Finding the Fourth Proportional to 2,579.43, 3,863.98 and 1,190.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,579.43 : 3,863.98 = 1,190.89 : x
2. Step 2: Convert to fraction form
   2,579.43/3,863.98 = 1,190.89/x
3. Step 3: Cross multiply
   2,579.43x = 3,863.98 × 1,190.89
4. Step 4: Simplify right side
   2,579.43x = 4,601,575.14
5. Step 5: Solve for x
   x = 4,601,575.14/2,579.43
6. Step 6: Final answer
   x = 1,783.95