Finding the Fourth Proportional to 2,786.72, 3,845.46 and 1,607

Step by Step Solution

1. Step 1: Write the proportion equation
   2,786.72 : 3,845.46 = 1,607 : x
2. Step 2: Convert to fraction form
   2,786.72/3,845.46 = 1,607/x
3. Step 3: Cross multiply
   2,786.72x = 3,845.46 × 1,607
4. Step 4: Simplify right side
   2,786.72x = 6,179,654.22
5. Step 5: Solve for x
   x = 6,179,654.22/2,786.72
6. Step 6: Final answer
   x = 2,217.54