Finding the Fourth Proportional to 2,680.35, 3,696.42 and 1,839.57

Step by Step Solution

1. Step 1: Write the proportion equation
   2,680.35 : 3,696.42 = 1,839.57 : x
2. Step 2: Convert to fraction form
   2,680.35/3,696.42 = 1,839.57/x
3. Step 3: Cross multiply
   2,680.35x = 3,696.42 × 1,839.57
4. Step 4: Simplify right side
   2,680.35x = 6,799,823.34
5. Step 5: Solve for x
   x = 6,799,823.34/2,680.35
6. Step 6: Final answer
   x = 2,536.92