Finding the Fourth Proportional to 3,680.20, 5,510.58 and 1,943.56

Step by Step Solution

1. Step 1: Write the proportion equation
   3,680.20 : 5,510.58 = 1,943.56 : x
2. Step 2: Convert to fraction form
   3,680.20/5,510.58 = 1,943.56/x
3. Step 3: Cross multiply
   3,680.20x = 5,510.58 × 1,943.56
4. Step 4: Simplify right side
   3,680.20x = 10,710,142.86
5. Step 5: Solve for x
   x = 10,710,142.86/3,680.20
6. Step 6: Final answer
   x = 2,910.21