Finding the Fourth Proportional to 1,552.46, 2,142.57 and 889.41

Step by Step Solution

1. Step 1: Write the proportion equation
   1,552.46 : 2,142.57 = 889.41 : x
2. Step 2: Convert to fraction form
   1,552.46/2,142.57 = 889.41/x
3. Step 3: Cross multiply
   1,552.46x = 2,142.57 × 889.41
4. Step 4: Simplify right side
   1,552.46x = 1,905,623.18
5. Step 5: Solve for x
   x = 1,905,623.18/1,552.46
6. Step 6: Final answer
   x = 1,227.49