Finding the Fourth Proportional to 2,632.88, 3,945 and 900.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,632.88 : 3,945 = 900.56 : x
2. Step 2: Convert to fraction form
   2,632.88/3,945 = 900.56/x
3. Step 3: Cross multiply
   2,632.88x = 3,945 × 900.56
4. Step 4: Simplify right side
   2,632.88x = 3,552,709.20
5. Step 5: Solve for x
   x = 3,552,709.20/2,632.88
6. Step 6: Final answer
   x = 1,349.36