Finding the Fourth Proportional to 1,682.37, 2,320.86 and 1,185.29

Step by Step Solution

1. Step 1: Write the proportion equation
   1,682.37 : 2,320.86 = 1,185.29 : x
2. Step 2: Convert to fraction form
   1,682.37/2,320.86 = 1,185.29/x
3. Step 3: Cross multiply
   1,682.37x = 2,320.86 × 1,185.29
4. Step 4: Simplify right side
   1,682.37x = 2,750,880.55
5. Step 5: Solve for x
   x = 2,750,880.55/1,682.37
6. Step 6: Final answer
   x = 1,635.12