Finding the Fourth Proportional to 2,459.48, 3,689.82 and 899.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,459.48 : 3,689.82 = 899.42 : x
2. Step 2: Convert to fraction form
   2,459.48/3,689.82 = 899.42/x
3. Step 3: Cross multiply
   2,459.48x = 3,689.82 × 899.42
4. Step 4: Simplify right side
   2,459.48x = 3,318,679.46
5. Step 5: Solve for x
   x = 3,318,679.46/2,459.48
6. Step 6: Final answer
   x = 1,349.34