Finding the Fourth Proportional to 2,654.86, 3,664.56 and 1,607.80

Step by Step Solution

1. Step 1: Write the proportion equation
   2,654.86 : 3,664.56 = 1,607.80 : x
2. Step 2: Convert to fraction form
   2,654.86/3,664.56 = 1,607.80/x
3. Step 3: Cross multiply
   2,654.86x = 3,664.56 × 1,607.80
4. Step 4: Simplify right side
   2,654.86x = 5,891,879.57
5. Step 5: Solve for x
   x = 5,891,879.57/2,654.86
6. Step 6: Final answer
   x = 2,219.28