Finding the Fourth Proportional to 1,740.24, 2,608.61 and 765.54

Step by Step Solution

1. Step 1: Write the proportion equation
   1,740.24 : 2,608.61 = 765.54 : x
2. Step 2: Convert to fraction form
   1,740.24/2,608.61 = 765.54/x
3. Step 3: Cross multiply
   1,740.24x = 2,608.61 × 765.54
4. Step 4: Simplify right side
   1,740.24x = 1,996,991.47
5. Step 5: Solve for x
   x = 1,996,991.47/1,740.24
6. Step 6: Final answer
   x = 1,147.54