Finding the Fourth Proportional to 3,160.47, 4,740.81 and 1,185.89

Step by Step Solution

1. Step 1: Write the proportion equation
   3,160.47 : 4,740.81 = 1,185.89 : x
2. Step 2: Convert to fraction form
   3,160.47/4,740.81 = 1,185.89/x
3. Step 3: Cross multiply
   3,160.47x = 4,740.81 × 1,185.89
4. Step 4: Simplify right side
   3,160.47x = 5,622,099.91
5. Step 5: Solve for x
   x = 5,622,099.91/3,160.47
6. Step 6: Final answer
   x = 1,778.88