Finding the Fourth Proportional to 1,629.37, 2,245.60 and 1,186.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,629.37 : 2,245.60 = 1,186.50 : x
2. Step 2: Convert to fraction form
   1,629.37/2,245.60 = 1,186.50/x
3. Step 3: Cross multiply
   1,629.37x = 2,245.60 × 1,186.50
4. Step 4: Simplify right side
   1,629.37x = 2,664,404.40
5. Step 5: Solve for x
   x = 2,664,404.40/1,629.37
6. Step 6: Final answer
   x = 1,635.24