Finding the Fourth Proportional to 2,374.76, 3,563.43 and 989.06

Step by Step Solution

1. Step 1: Write the proportion equation
   2,374.76 : 3,563.43 = 989.06 : x
2. Step 2: Convert to fraction form
   2,374.76/3,563.43 = 989.06/x
3. Step 3: Cross multiply
   2,374.76x = 3,563.43 × 989.06
4. Step 4: Simplify right side
   2,374.76x = 3,524,424.55
5. Step 5: Solve for x
   x = 3,524,424.55/2,374.76
6. Step 6: Final answer
   x = 1,484.12