Finding the Fourth Proportional to 3,757.89, 5,628.63 and 1,905.81

Step by Step Solution

1. Step 1: Write the proportion equation
   3,757.89 : 5,628.63 = 1,905.81 : x
2. Step 2: Convert to fraction form
   3,757.89/5,628.63 = 1,905.81/x
3. Step 3: Cross multiply
   3,757.89x = 5,628.63 × 1,905.81
4. Step 4: Simplify right side
   3,757.89x = 10,727,099.34
5. Step 5: Solve for x
   x = 10,727,099.34/3,757.89
6. Step 6: Final answer
   x = 2,854.55