Finding the Fourth Proportional to 1,550.74, 2,140.17 and 887.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,550.74 : 2,140.17 = 887.46 : x
2. Step 2: Convert to fraction form
   1,550.74/2,140.17 = 887.46/x
3. Step 3: Cross multiply
   1,550.74x = 2,140.17 × 887.46
4. Step 4: Simplify right side
   1,550.74x = 1,899,315.27
5. Step 5: Solve for x
   x = 1,899,315.27/1,550.74
6. Step 6: Final answer
   x = 1,224.78