Finding the Fourth Proportional to 2,449.34, 3,673.09 and 987.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,449.34 : 3,673.09 = 987.69 : x
2. Step 2: Convert to fraction form
   2,449.34/3,673.09 = 987.69/x
3. Step 3: Cross multiply
   2,449.34x = 3,673.09 × 987.69
4. Step 4: Simplify right side
   2,449.34x = 3,627,869.32
5. Step 5: Solve for x
   x = 3,627,869.32/2,449.34
6. Step 6: Final answer
   x = 1,481.17