Finding the Fourth Proportional to 1,578.83, 2,365.57 and 755.29

Step by Step Solution

1. Step 1: Write the proportion equation
   1,578.83 : 2,365.57 = 755.29 : x
2. Step 2: Convert to fraction form
   1,578.83/2,365.57 = 755.29/x
3. Step 3: Cross multiply
   1,578.83x = 2,365.57 × 755.29
4. Step 4: Simplify right side
   1,578.83x = 1,786,695.27
5. Step 5: Solve for x
   x = 1,786,695.27/1,578.83
6. Step 6: Final answer
   x = 1,131.66