Finding the Fourth Proportional to 3,846.35, 5,766.06 and 1,380.59

Step by Step Solution

1. Step 1: Write the proportion equation
   3,846.35 : 5,766.06 = 1,380.59 : x
2. Step 2: Convert to fraction form
   3,846.35/5,766.06 = 1,380.59/x
3. Step 3: Cross multiply
   3,846.35x = 5,766.06 × 1,380.59
4. Step 4: Simplify right side
   3,846.35x = 7,960,564.78
5. Step 5: Solve for x
   x = 7,960,564.78/3,846.35
6. Step 6: Final answer
   x = 2,069.64