Finding the Fourth Proportional to 2,286.72, 3,427.32 and 1,052.43

Step by Step Solution

1. Step 1: Write the proportion equation
   2,286.72 : 3,427.32 = 1,052.43 : x
2. Step 2: Convert to fraction form
   2,286.72/3,427.32 = 1,052.43/x
3. Step 3: Cross multiply
   2,286.72x = 3,427.32 × 1,052.43
4. Step 4: Simplify right side
   2,286.72x = 3,607,014.39
5. Step 5: Solve for x
   x = 3,607,014.39/2,286.72
6. Step 6: Final answer
   x = 1,577.37