Finding the Fourth Proportional to 3,644.96, 5,460.78 and 1,908.32

Step by Step Solution

1. Step 1: Write the proportion equation
   3,644.96 : 5,460.78 = 1,908.32 : x
2. Step 2: Convert to fraction form
   3,644.96/5,460.78 = 1,908.32/x
3. Step 3: Cross multiply
   3,644.96x = 5,460.78 × 1,908.32
4. Step 4: Simplify right side
   3,644.96x = 10,420,915.69
5. Step 5: Solve for x
   x = 10,420,915.69/3,644.96
6. Step 6: Final answer
   x = 2,858.99