Finding the Fourth Proportional to 3,685.95, 5,521.52 and 1,831.45

Step by Step Solution

1. Step 1: Write the proportion equation
   3,685.95 : 5,521.52 = 1,831.45 : x
2. Step 2: Convert to fraction form
   3,685.95/5,521.52 = 1,831.45/x
3. Step 3: Cross multiply
   3,685.95x = 5,521.52 × 1,831.45
4. Step 4: Simplify right side
   3,685.95x = 10,112,378.65
5. Step 5: Solve for x
   x = 10,112,378.65/3,685.95
6. Step 6: Final answer
   x = 2,743.49