Finding the Fourth Proportional to 1,947.39, 2,687.40 and 1,063.21

Step by Step Solution

1. Step 1: Write the proportion equation
   1,947.39 : 2,687.40 = 1,063.21 : x
2. Step 2: Convert to fraction form
   1,947.39/2,687.40 = 1,063.21/x
3. Step 3: Cross multiply
   1,947.39x = 2,687.40 × 1,063.21
4. Step 4: Simplify right side
   1,947.39x = 2,857,270.55
5. Step 5: Solve for x
   x = 2,857,270.55/1,947.39
6. Step 6: Final answer
   x = 1,467.23