Finding the Fourth Proportional to 3,870.22, 5,340.93 and 2,277.82

Step by Step Solution

1. Step 1: Write the proportion equation
   3,870.22 : 5,340.93 = 2,277.82 : x
2. Step 2: Convert to fraction form
   3,870.22/5,340.93 = 2,277.82/x
3. Step 3: Cross multiply
   3,870.22x = 5,340.93 × 2,277.82
4. Step 4: Simplify right side
   3,870.22x = 12,165,677.17
5. Step 5: Solve for x
   x = 12,165,677.17/3,870.22
6. Step 6: Final answer
   x = 3,143.41