Finding the Fourth Proportional to 3,868.32, 5,337.39 and 2,611.71

Step by Step Solution

1. Step 1: Write the proportion equation
   3,868.32 : 5,337.39 = 2,611.71 : x
2. Step 2: Convert to fraction form
   3,868.32/5,337.39 = 2,611.71/x
3. Step 3: Cross multiply
   3,868.32x = 5,337.39 × 2,611.71
4. Step 4: Simplify right side
   3,868.32x = 13,939,724.63
5. Step 5: Solve for x
   x = 13,939,724.63/3,868.32
6. Step 6: Final answer
   x = 3,603.56