Finding the Fourth Proportional to 2,641.38, 3,643.29 and 1,591.62

Step by Step Solution

1. Step 1: Write the proportion equation
   2,641.38 : 3,643.29 = 1,591.62 : x
2. Step 2: Convert to fraction form
   2,641.38/3,643.29 = 1,591.62/x
3. Step 3: Cross multiply
   2,641.38x = 3,643.29 × 1,591.62
4. Step 4: Simplify right side
   2,641.38x = 5,798,733.23
5. Step 5: Solve for x
   x = 5,798,733.23/2,641.38
6. Step 6: Final answer
   x = 2,195.34