Finding the Fourth Proportional to 3,768.98, 5,656.59 and 1,921.46

Step by Step Solution

1. Step 1: Write the proportion equation
   3,768.98 : 5,656.59 = 1,921.46 : x
2. Step 2: Convert to fraction form
   3,768.98/5,656.59 = 1,921.46/x
3. Step 3: Cross multiply
   3,768.98x = 5,656.59 × 1,921.46
4. Step 4: Simplify right side
   3,768.98x = 10,868,911.42
5. Step 5: Solve for x
   x = 10,868,911.42/3,768.98
6. Step 6: Final answer
   x = 2,883.78