Finding the Fourth Proportional to 2,282.47, 3,147.93 and 1,397.64

Step by Step Solution

1. Step 1: Write the proportion equation
   2,282.47 : 3,147.93 = 1,397.64 : x
2. Step 2: Convert to fraction form
   2,282.47/3,147.93 = 1,397.64/x
3. Step 3: Cross multiply
   2,282.47x = 3,147.93 × 1,397.64
4. Step 4: Simplify right side
   2,282.47x = 4,399,672.89
5. Step 5: Solve for x
   x = 4,399,672.89/2,282.47
6. Step 6: Final answer
   x = 1,927.59