Finding the Fourth Proportional to 2,375.72, 3,563.27 and 988.80

Step by Step Solution

1. Step 1: Write the proportion equation
   2,375.72 : 3,563.27 = 988.80 : x
2. Step 2: Convert to fraction form
   2,375.72/3,563.27 = 988.80/x
3. Step 3: Cross multiply
   2,375.72x = 3,563.27 × 988.80
4. Step 4: Simplify right side
   2,375.72x = 3,523,361.38
5. Step 5: Solve for x
   x = 3,523,361.38/2,375.72
6. Step 6: Final answer
   x = 1,483.07