Finding the Fourth Proportional to 3,112.27, 4,294.77 and 1,786.42

Step by Step Solution

1. Step 1: Write the proportion equation
   3,112.27 : 4,294.77 = 1,786.42 : x
2. Step 2: Convert to fraction form
   3,112.27/4,294.77 = 1,786.42/x
3. Step 3: Cross multiply
   3,112.27x = 4,294.77 × 1,786.42
4. Step 4: Simplify right side
   3,112.27x = 7,672,263.02
5. Step 5: Solve for x
   x = 7,672,263.02/3,112.27
6. Step 6: Final answer
   x = 2,465.17