Finding the Fourth Proportional to 3,768.07, 5,655.57 and 1,920.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,768.07 : 5,655.57 = 1,920.50 : x
2. Step 2: Convert to fraction form
   3,768.07/5,655.57 = 1,920.50/x
3. Step 3: Cross multiply
   3,768.07x = 5,655.57 × 1,920.50
4. Step 4: Simplify right side
   3,768.07x = 10,861,522.19
5. Step 5: Solve for x
   x = 10,861,522.19/3,768.07
6. Step 6: Final answer
   x = 2,882.52