Finding the Fourth Proportional to 3,397.60, 5,095.76 and 1,665.12

Step by Step Solution

1. Step 1: Write the proportion equation
   3,397.60 : 5,095.76 = 1,665.12 : x
2. Step 2: Convert to fraction form
   3,397.60/5,095.76 = 1,665.12/x
3. Step 3: Cross multiply
   3,397.60x = 5,095.76 × 1,665.12
4. Step 4: Simplify right side
   3,397.60x = 8,485,051.89
5. Step 5: Solve for x
   x = 8,485,051.89/3,397.60
6. Step 6: Final answer
   x = 2,497.37