Finding the Fourth Proportional to 2,181.69, 3,009.96 and 1,297.17

Step by Step Solution

1. Step 1: Write the proportion equation
   2,181.69 : 3,009.96 = 1,297.17 : x
2. Step 2: Convert to fraction form
   2,181.69/3,009.96 = 1,297.17/x
3. Step 3: Cross multiply
   2,181.69x = 3,009.96 × 1,297.17
4. Step 4: Simplify right side
   2,181.69x = 3,904,429.81
5. Step 5: Solve for x
   x = 3,904,429.81/2,181.69
6. Step 6: Final answer
   x = 1,789.64