Finding the Fourth Proportional to 2,886.48, 3,973.50 and 2,591.64

Step by Step Solution

1. Step 1: Write the proportion equation
   2,886.48 : 3,973.50 = 2,591.64 : x
2. Step 2: Convert to fraction form
   2,886.48/3,973.50 = 2,591.64/x
3. Step 3: Cross multiply
   2,886.48x = 3,973.50 × 2,591.64
4. Step 4: Simplify right side
   2,886.48x = 10,297,881.54
5. Step 5: Solve for x
   x = 10,297,881.54/2,886.48
6. Step 6: Final answer
   x = 3,567.63