Finding the Fourth Proportional to 3,870.85, 5,341.69 and 2,277.67

Step by Step Solution

1. Step 1: Write the proportion equation
   3,870.85 : 5,341.69 = 2,277.67 : x
2. Step 2: Convert to fraction form
   3,870.85/5,341.69 = 2,277.67/x
3. Step 3: Cross multiply
   3,870.85x = 5,341.69 × 2,277.67
4. Step 4: Simplify right side
   3,870.85x = 12,166,607.06
5. Step 5: Solve for x
   x = 12,166,607.06/3,870.85
6. Step 6: Final answer
   x = 3,143.14