Finding the Fourth Proportional to 2,181.91, 3,273.71 and 1,012.51

Step by Step Solution

1. Step 1: Write the proportion equation
   2,181.91 : 3,273.71 = 1,012.51 : x
2. Step 2: Convert to fraction form
   2,181.91/3,273.71 = 1,012.51/x
3. Step 3: Cross multiply
   2,181.91x = 3,273.71 × 1,012.51
4. Step 4: Simplify right side
   2,181.91x = 3,314,671.03
5. Step 5: Solve for x
   x = 3,314,671.03/2,181.91
6. Step 6: Final answer
   x = 1,519.16