Finding the Fourth Proportional to 2,182.47, 3,012.18 and 1,298.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,182.47 : 3,012.18 = 1,298.31 : x
2. Step 2: Convert to fraction form
   2,182.47/3,012.18 = 1,298.31/x
3. Step 3: Cross multiply
   2,182.47x = 3,012.18 × 1,298.31
4. Step 4: Simplify right side
   2,182.47x = 3,910,743.42
5. Step 5: Solve for x
   x = 3,910,743.42/2,182.47
6. Step 6: Final answer
   x = 1,791.89