Finding the Fourth Proportional to 5,604.78, 8,404.56 and 1,906.01

Step by Step Solution

1. Step 1: Write the proportion equation
   5,604.78 : 8,404.56 = 1,906.01 : x
2. Step 2: Convert to fraction form
   5,604.78/8,404.56 = 1,906.01/x
3. Step 3: Cross multiply
   5,604.78x = 8,404.56 × 1,906.01
4. Step 4: Simplify right side
   5,604.78x = 16,019,133.38
5. Step 5: Solve for x
   x = 16,019,133.38/5,604.78
6. Step 6: Final answer
   x = 2,858.12