Finding the Fourth Proportional to 3,780.70, 5,663.76 and 1,834.28

Step by Step Solution

1. Step 1: Write the proportion equation
   3,780.70 : 5,663.76 = 1,834.28 : x
2. Step 2: Convert to fraction form
   3,780.70/5,663.76 = 1,834.28/x
3. Step 3: Cross multiply
   3,780.70x = 5,663.76 × 1,834.28
4. Step 4: Simplify right side
   3,780.70x = 10,388,921.69
5. Step 5: Solve for x
   x = 10,388,921.69/3,780.70
6. Step 6: Final answer
   x = 2,747.88