Finding the Fourth Proportional to 3,453.38, 5,179.59 and 988.41

Step by Step Solution

1. Step 1: Write the proportion equation
   3,453.38 : 5,179.59 = 988.41 : x
2. Step 2: Convert to fraction form
   3,453.38/5,179.59 = 988.41/x
3. Step 3: Cross multiply
   3,453.38x = 5,179.59 × 988.41
4. Step 4: Simplify right side
   3,453.38x = 5,119,558.55
5. Step 5: Solve for x
   x = 5,119,558.55/3,453.38
6. Step 6: Final answer
   x = 1,482.48