Finding the Fourth Proportional to 1,582.72, 2,371.02 and 887.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,582.72 : 2,371.02 = 887.27 : x
2. Step 2: Convert to fraction form
   1,582.72/2,371.02 = 887.27/x
3. Step 3: Cross multiply
   1,582.72x = 2,371.02 × 887.27
4. Step 4: Simplify right side
   1,582.72x = 2,103,744.17
5. Step 5: Solve for x
   x = 2,103,744.17/1,582.72
6. Step 6: Final answer
   x = 1,329.20