Finding the Fourth Proportional to 2,631.34, 3,944.58 and 899.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,631.34 : 3,944.58 = 899.56 : x
2. Step 2: Convert to fraction form
   2,631.34/3,944.58 = 899.56/x
3. Step 3: Cross multiply
   2,631.34x = 3,944.58 × 899.56
4. Step 4: Simplify right side
   2,631.34x = 3,548,386.38
5. Step 5: Solve for x
   x = 3,548,386.38/2,631.34
6. Step 6: Final answer
   x = 1,348.51