Finding the Fourth Proportional to 3,165.39, 4,748.21 and 1,086.82

Step by Step Solution

1. Step 1: Write the proportion equation
   3,165.39 : 4,748.21 = 1,086.82 : x
2. Step 2: Convert to fraction form
   3,165.39/4,748.21 = 1,086.82/x
3. Step 3: Cross multiply
   3,165.39x = 4,748.21 × 1,086.82
4. Step 4: Simplify right side
   3,165.39x = 5,160,449.59
5. Step 5: Solve for x
   x = 5,160,449.59/3,165.39
6. Step 6: Final answer
   x = 1,630.27