Finding the Fourth Proportional to 3,165.82, 4,748.69 and 1,085.81

Step by Step Solution

1. Step 1: Write the proportion equation
   3,165.82 : 4,748.69 = 1,085.81 : x
2. Step 2: Convert to fraction form
   3,165.82/4,748.69 = 1,085.81/x
3. Step 3: Cross multiply
   3,165.82x = 4,748.69 × 1,085.81
4. Step 4: Simplify right side
   3,165.82x = 5,156,154.06
5. Step 5: Solve for x
   x = 5,156,154.06/3,165.82
6. Step 6: Final answer
   x = 1,628.70