Finding the Fourth Proportional to 1,996.48, 2,987.82 and 1,582.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,996.48 : 2,987.82 = 1,582.12 : x
2. Step 2: Convert to fraction form
   1,996.48/2,987.82 = 1,582.12/x
3. Step 3: Cross multiply
   1,996.48x = 2,987.82 × 1,582.12
4. Step 4: Simplify right side
   1,996.48x = 4,727,089.78
5. Step 5: Solve for x
   x = 4,727,089.78/1,996.48
6. Step 6: Final answer
   x = 2,367.71