Finding the Fourth Proportional to 4,087.56, 5,640.86 and 2,318.82

Step by Step Solution

1. Step 1: Write the proportion equation
   4,087.56 : 5,640.86 = 2,318.82 : x
2. Step 2: Convert to fraction form
   4,087.56/5,640.86 = 2,318.82/x
3. Step 3: Cross multiply
   4,087.56x = 5,640.86 × 2,318.82
4. Step 4: Simplify right side
   4,087.56x = 13,080,127.39
5. Step 5: Solve for x
   x = 13,080,127.39/4,087.56
6. Step 6: Final answer
   x = 3,199.98