Finding the Fourth Proportional to 1,760.78, 2,429.12 and 1,061.75

Step by Step Solution

1. Step 1: Write the proportion equation
   1,760.78 : 2,429.12 = 1,061.75 : x
2. Step 2: Convert to fraction form
   1,760.78/2,429.12 = 1,061.75/x
3. Step 3: Cross multiply
   1,760.78x = 2,429.12 × 1,061.75
4. Step 4: Simplify right side
   1,760.78x = 2,579,112.85
5. Step 5: Solve for x
   x = 2,579,112.85/1,760.78
6. Step 6: Final answer
   x = 1,464.76