Finding the Fourth Proportional to 1,467.45, 2,019.69 and 1,287

Step by Step Solution

1. Step 1: Write the proportion equation
   1,467.45 : 2,019.69 = 1,287 : x
2. Step 2: Convert to fraction form
   1,467.45/2,019.69 = 1,287/x
3. Step 3: Cross multiply
   1,467.45x = 2,019.69 × 1,287
4. Step 4: Simplify right side
   1,467.45x = 2,599,341.03
5. Step 5: Solve for x
   x = 2,599,341.03/1,467.45
6. Step 6: Final answer
   x = 1,771.33