Finding the Fourth Proportional to 3,864.48, 5,798.34 and 3,558.12

Step by Step Solution

1. Step 1: Write the proportion equation
   3,864.48 : 5,798.34 = 3,558.12 : x
2. Step 2: Convert to fraction form
   3,864.48/5,798.34 = 3,558.12/x
3. Step 3: Cross multiply
   3,864.48x = 5,798.34 × 3,558.12
4. Step 4: Simplify right side
   3,864.48x = 20,631,189.52
5. Step 5: Solve for x
   x = 20,631,189.52/3,864.48
6. Step 6: Final answer
   x = 5,338.67