Finding the Fourth Proportional to 3,858.76, 5,782.47 and 3,300.16

Step by Step Solution

1. Step 1: Write the proportion equation
   3,858.76 : 5,782.47 = 3,300.16 : x
2. Step 2: Convert to fraction form
   3,858.76/5,782.47 = 3,300.16/x
3. Step 3: Cross multiply
   3,858.76x = 5,782.47 × 3,300.16
4. Step 4: Simplify right side
   3,858.76x = 19,083,076.20
5. Step 5: Solve for x
   x = 19,083,076.20/3,858.76
6. Step 6: Final answer
   x = 4,945.39