Finding the Fourth Proportional to 2,665.60, 3,670.92 and 2,608.36

Step by Step Solution

1. Step 1: Write the proportion equation
   2,665.60 : 3,670.92 = 2,608.36 : x
2. Step 2: Convert to fraction form
   2,665.60/3,670.92 = 2,608.36/x
3. Step 3: Cross multiply
   2,665.60x = 3,670.92 × 2,608.36
4. Step 4: Simplify right side
   2,665.60x = 9,575,080.89
5. Step 5: Solve for x
   x = 9,575,080.89/2,665.60
6. Step 6: Final answer
   x = 3,592.09