Finding the Fourth Proportional to 3,682.78, 5,523.45 and 1,085.02

Step by Step Solution

1. Step 1: Write the proportion equation
   3,682.78 : 5,523.45 = 1,085.02 : x
2. Step 2: Convert to fraction form
   3,682.78/5,523.45 = 1,085.02/x
3. Step 3: Cross multiply
   3,682.78x = 5,523.45 × 1,085.02
4. Step 4: Simplify right side
   3,682.78x = 5,993,053.72
5. Step 5: Solve for x
   x = 5,993,053.72/3,682.78
6. Step 6: Final answer
   x = 1,627.32