Finding the Fourth Proportional to 2,448.84, 3,673.38 and 987.81

Step by Step Solution

1. Step 1: Write the proportion equation
   2,448.84 : 3,673.38 = 987.81 : x
2. Step 2: Convert to fraction form
   2,448.84/3,673.38 = 987.81/x
3. Step 3: Cross multiply
   2,448.84x = 3,673.38 × 987.81
4. Step 4: Simplify right side
   2,448.84x = 3,628,601.50
5. Step 5: Solve for x
   x = 3,628,601.50/2,448.84
6. Step 6: Final answer
   x = 1,481.76