Finding the Fourth Proportional to 1,579.89, 2,367.79 and 756.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,579.89 : 2,367.79 = 756.55 : x
2. Step 2: Convert to fraction form
   1,579.89/2,367.79 = 756.55/x
3. Step 3: Cross multiply
   1,579.89x = 2,367.79 × 756.55
4. Step 4: Simplify right side
   1,579.89x = 1,791,351.52
5. Step 5: Solve for x
   x = 1,791,351.52/1,579.89
6. Step 6: Final answer
   x = 1,133.85