Finding the Fourth Proportional to 4,790.89, 7,186.69 and 1,280.82

Step by Step Solution

1. Step 1: Write the proportion equation
   4,790.89 : 7,186.69 = 1,280.82 : x
2. Step 2: Convert to fraction form
   4,790.89/7,186.69 = 1,280.82/x
3. Step 3: Cross multiply
   4,790.89x = 7,186.69 × 1,280.82
4. Step 4: Simplify right side
   4,790.89x = 9,204,820.35
5. Step 5: Solve for x
   x = 9,204,820.35/4,790.89
6. Step 6: Final answer
   x = 1,921.32