Finding the Fourth Proportional to 1,801.43, 2,486.01 and 1,015.47

Step by Step Solution

1. Step 1: Write the proportion equation
   1,801.43 : 2,486.01 = 1,015.47 : x
2. Step 2: Convert to fraction form
   1,801.43/2,486.01 = 1,015.47/x
3. Step 3: Cross multiply
   1,801.43x = 2,486.01 × 1,015.47
4. Step 4: Simplify right side
   1,801.43x = 2,524,468.57
5. Step 5: Solve for x
   x = 2,524,468.57/1,801.43
6. Step 6: Final answer
   x = 1,401.37