Finding the Fourth Proportional to 3,858.54, 5,783.18 and 1,775.69

Step by Step Solution

1. Step 1: Write the proportion equation
   3,858.54 : 5,783.18 = 1,775.69 : x
2. Step 2: Convert to fraction form
   3,858.54/5,783.18 = 1,775.69/x
3. Step 3: Cross multiply
   3,858.54x = 5,783.18 × 1,775.69
4. Step 4: Simplify right side
   3,858.54x = 10,269,097.10
5. Step 5: Solve for x
   x = 10,269,097.10/3,858.54
6. Step 6: Final answer
   x = 2,661.39