Finding the Fourth Proportional to 2,488.22, 3,732.43 and 987.23

Step by Step Solution

1. Step 1: Write the proportion equation
   2,488.22 : 3,732.43 = 987.23 : x
2. Step 2: Convert to fraction form
   2,488.22/3,732.43 = 987.23/x
3. Step 3: Cross multiply
   2,488.22x = 3,732.43 × 987.23
4. Step 4: Simplify right side
   2,488.22x = 3,684,773.73
5. Step 5: Solve for x
   x = 3,684,773.73/2,488.22
6. Step 6: Final answer
   x = 1,480.89