Finding the Fourth Proportional to 1,550.46, 2,139.56 and 887.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,550.46 : 2,139.56 = 887.27 : x
2. Step 2: Convert to fraction form
   1,550.46/2,139.56 = 887.27/x
3. Step 3: Cross multiply
   1,550.46x = 2,139.56 × 887.27
4. Step 4: Simplify right side
   1,550.46x = 1,898,352.27
5. Step 5: Solve for x
   x = 1,898,352.27/1,550.46
6. Step 6: Final answer
   x = 1,224.38