Finding the Fourth Proportional to 1,552.71, 2,142.78 and 889.62

Step by Step Solution

1. Step 1: Write the proportion equation
   1,552.71 : 2,142.78 = 889.62 : x
2. Step 2: Convert to fraction form
   1,552.71/2,142.78 = 889.62/x
3. Step 3: Cross multiply
   1,552.71x = 2,142.78 × 889.62
4. Step 4: Simplify right side
   1,552.71x = 1,906,259.94
5. Step 5: Solve for x
   x = 1,906,259.94/1,552.71
6. Step 6: Final answer
   x = 1,227.70