Finding the Fourth Proportional to 2,632.12, 3,945.54 and 899.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,632.12 : 3,945.54 = 899.56 : x
2. Step 2: Convert to fraction form
   2,632.12/3,945.54 = 899.56/x
3. Step 3: Cross multiply
   2,632.12x = 3,945.54 × 899.56
4. Step 4: Simplify right side
   2,632.12x = 3,549,249.96
5. Step 5: Solve for x
   x = 3,549,249.96/2,632.12
6. Step 6: Final answer
   x = 1,348.44