Finding the Fourth Proportional to 3,871.83, 5,343.23 and 2,278.59

Step by Step Solution

1. Step 1: Write the proportion equation
   3,871.83 : 5,343.23 = 2,278.59 : x
2. Step 2: Convert to fraction form
   3,871.83/5,343.23 = 2,278.59/x
3. Step 3: Cross multiply
   3,871.83x = 5,343.23 × 2,278.59
4. Step 4: Simplify right side
   3,871.83x = 12,175,030.45
5. Step 5: Solve for x
   x = 12,175,030.45/3,871.83
6. Step 6: Final answer
   x = 3,144.52