Finding the Fourth Proportional to 2,181.89, 3,010.79 and 1,297.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,181.89 : 3,010.79 = 1,297.52 : x
2. Step 2: Convert to fraction form
   2,181.89/3,010.79 = 1,297.52/x
3. Step 3: Cross multiply
   2,181.89x = 3,010.79 × 1,297.52
4. Step 4: Simplify right side
   2,181.89x = 3,906,569.36
5. Step 5: Solve for x
   x = 3,906,569.36/2,181.89
6. Step 6: Final answer
   x = 1,790.45