Finding the Fourth Proportional to 1,550.27, 2,139.44 and 887.33

Step by Step Solution

1. Step 1: Write the proportion equation
   1,550.27 : 2,139.44 = 887.33 : x
2. Step 2: Convert to fraction form
   1,550.27/2,139.44 = 887.33/x
3. Step 3: Cross multiply
   1,550.27x = 2,139.44 × 887.33
4. Step 4: Simplify right side
   1,550.27x = 1,898,389.30
5. Step 5: Solve for x
   x = 1,898,389.30/1,550.27
6. Step 6: Final answer
   x = 1,224.55