Finding the Fourth Proportional to 2,450.34, 3,675.63 and 989.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,450.34 : 3,675.63 = 989.31 : x
2. Step 2: Convert to fraction form
   2,450.34/3,675.63 = 989.31/x
3. Step 3: Cross multiply
   2,450.34x = 3,675.63 × 989.31
4. Step 4: Simplify right side
   2,450.34x = 3,636,337.52
5. Step 5: Solve for x
   x = 3,636,337.52/2,450.34
6. Step 6: Final answer
   x = 1,484.01