Finding the Fourth Proportional to 1,760.88, 2,641.92 and 1,178.24

Step by Step Solution

1. Step 1: Write the proportion equation
   1,760.88 : 2,641.92 = 1,178.24 : x
2. Step 2: Convert to fraction form
   1,760.88/2,641.92 = 1,178.24/x
3. Step 3: Cross multiply
   1,760.88x = 2,641.92 × 1,178.24
4. Step 4: Simplify right side
   1,760.88x = 3,112,815.82
5. Step 5: Solve for x
   x = 3,112,815.82/1,760.88
6. Step 6: Final answer
   x = 1,767.76