Finding the Fourth Proportional to 1,947.42, 2,687.41 and 1,063.20

Step by Step Solution

1. Step 1: Write the proportion equation
   1,947.42 : 2,687.41 = 1,063.20 : x
2. Step 2: Convert to fraction form
   1,947.42/2,687.41 = 1,063.20/x
3. Step 3: Cross multiply
   1,947.42x = 2,687.41 × 1,063.20
4. Step 4: Simplify right side
   1,947.42x = 2,857,254.31
5. Step 5: Solve for x
   x = 2,857,254.31/1,947.42
6. Step 6: Final answer
   x = 1,467.20