Finding the Fourth Proportional to 2,662.86, 3,675.60 and 1,615.80

Step by Step Solution

1. Step 1: Write the proportion equation
   2,662.86 : 3,675.60 = 1,615.80 : x
2. Step 2: Convert to fraction form
   2,662.86/3,675.60 = 1,615.80/x
3. Step 3: Cross multiply
   2,662.86x = 3,675.60 × 1,615.80
4. Step 4: Simplify right side
   2,662.86x = 5,939,034.48
5. Step 5: Solve for x
   x = 5,939,034.48/2,662.86
6. Step 6: Final answer
   x = 2,230.32