Finding the Fourth Proportional to 2,376.10, 3,564.43 and 989.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,376.10 : 3,564.43 = 989.25 : x
2. Step 2: Convert to fraction form
   2,376.10/3,564.43 = 989.25/x
3. Step 3: Cross multiply
   2,376.10x = 3,564.43 × 989.25
4. Step 4: Simplify right side
   2,376.10x = 3,526,096.54
5. Step 5: Solve for x
   x = 3,526,096.54/2,376.10
6. Step 6: Final answer
   x = 1,483.98