Finding the Fourth Proportional to 3,453.32, 5,179.23 and 987.48

Step by Step Solution

1. Step 1: Write the proportion equation
   3,453.32 : 5,179.23 = 987.48 : x
2. Step 2: Convert to fraction form
   3,453.32/5,179.23 = 987.48/x
3. Step 3: Cross multiply
   3,453.32x = 5,179.23 × 987.48
4. Step 4: Simplify right side
   3,453.32x = 5,114,386.04
5. Step 5: Solve for x
   x = 5,114,386.04/3,453.32
6. Step 6: Final answer
   x = 1,481.00