Finding the Fourth Proportional to 1,607.37, 2,409.89 and 1,086.08

Step by Step Solution

1. Step 1: Write the proportion equation
   1,607.37 : 2,409.89 = 1,086.08 : x
2. Step 2: Convert to fraction form
   1,607.37/2,409.89 = 1,086.08/x
3. Step 3: Cross multiply
   1,607.37x = 2,409.89 × 1,086.08
4. Step 4: Simplify right side
   1,607.37x = 2,617,333.33
5. Step 5: Solve for x
   x = 2,617,333.33/1,607.37
6. Step 6: Final answer
   x = 1,628.33