Finding the Fourth Proportional to 3,643.61, 5,028.17 and 2,071.69

Step by Step Solution

1. Step 1: Write the proportion equation
   3,643.61 : 5,028.17 = 2,071.69 : x
2. Step 2: Convert to fraction form
   3,643.61/5,028.17 = 2,071.69/x
3. Step 3: Cross multiply
   3,643.61x = 5,028.17 × 2,071.69
4. Step 4: Simplify right side
   3,643.61x = 10,416,786.58
5. Step 5: Solve for x
   x = 10,416,786.58/3,643.61
6. Step 6: Final answer
   x = 2,858.92