Finding the Fourth Proportional to 3,643.59, 5,026.91 and 2,071.29

Step by Step Solution

1. Step 1: Write the proportion equation
   3,643.59 : 5,026.91 = 2,071.29 : x
2. Step 2: Convert to fraction form
   3,643.59/5,026.91 = 2,071.29/x
3. Step 3: Cross multiply
   3,643.59x = 5,026.91 × 2,071.29
4. Step 4: Simplify right side
   3,643.59x = 10,412,178.06
5. Step 5: Solve for x
   x = 10,412,178.06/3,643.59
6. Step 6: Final answer
   x = 2,857.67