Finding the Fourth Proportional to 2,487.96, 3,433.86 and 1,647.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,487.96 : 3,433.86 = 1,647.18 : x
2. Step 2: Convert to fraction form
   2,487.96/3,433.86 = 1,647.18/x
3. Step 3: Cross multiply
   2,487.96x = 3,433.86 × 1,647.18
4. Step 4: Simplify right side
   2,487.96x = 5,656,185.51
5. Step 5: Solve for x
   x = 5,656,185.51/2,487.96
6. Step 6: Final answer
   x = 2,273.42