Finding the Fourth Proportional to 2,460.42, 3,689.46 and 899.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,460.42 : 3,689.46 = 899.31 : x
2. Step 2: Convert to fraction form
   2,460.42/3,689.46 = 899.31/x
3. Step 3: Cross multiply
   2,460.42x = 3,689.46 × 899.31
4. Step 4: Simplify right side
   2,460.42x = 3,317,968.27
5. Step 5: Solve for x
   x = 3,317,968.27/2,460.42
6. Step 6: Final answer
   x = 1,348.54