Finding the Fourth Proportional to 2,147.68, 2,963.46 and 1,263.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,147.68 : 2,963.46 = 1,263.34 : x
2. Step 2: Convert to fraction form
   2,147.68/2,963.46 = 1,263.34/x
3. Step 3: Cross multiply
   2,147.68x = 2,963.46 × 1,263.34
4. Step 4: Simplify right side
   2,147.68x = 3,743,857.56
5. Step 5: Solve for x
   x = 3,743,857.56/2,147.68
6. Step 6: Final answer
   x = 1,743.21