Finding the Fourth Proportional to 2,182.94, 3,012.31 and 1,298.81

Step by Step Solution

1. Step 1: Write the proportion equation
   2,182.94 : 3,012.31 = 1,298.81 : x
2. Step 2: Convert to fraction form
   2,182.94/3,012.31 = 1,298.81/x
3. Step 3: Cross multiply
   2,182.94x = 3,012.31 × 1,298.81
4. Step 4: Simplify right side
   2,182.94x = 3,912,418.35
5. Step 5: Solve for x
   x = 3,912,418.35/2,182.94
6. Step 6: Final answer
   x = 1,792.27