Finding the Fourth Proportional to 2,631.30, 3,945.33 and 900.06

Step by Step Solution

1. Step 1: Write the proportion equation
   2,631.30 : 3,945.33 = 900.06 : x
2. Step 2: Convert to fraction form
   2,631.30/3,945.33 = 900.06/x
3. Step 3: Cross multiply
   2,631.30x = 3,945.33 × 900.06
4. Step 4: Simplify right side
   2,631.30x = 3,551,033.72
5. Step 5: Solve for x
   x = 3,551,033.72/2,631.30
6. Step 6: Final answer
   x = 1,349.54