Finding the Fourth Proportional to 3,680.39, 5,522.45 and 1,831.43

Step by Step Solution

1. Step 1: Write the proportion equation
   3,680.39 : 5,522.45 = 1,831.43 : x
2. Step 2: Convert to fraction form
   3,680.39/5,522.45 = 1,831.43/x
3. Step 3: Cross multiply
   3,680.39x = 5,522.45 × 1,831.43
4. Step 4: Simplify right side
   3,680.39x = 10,113,985.25
5. Step 5: Solve for x
   x = 10,113,985.25/3,680.39
6. Step 6: Final answer
   x = 2,748.07