Finding the Fourth Proportional to 1,552.35, 2,142.27 and 889.29

Step by Step Solution

1. Step 1: Write the proportion equation
   1,552.35 : 2,142.27 = 889.29 : x
2. Step 2: Convert to fraction form
   1,552.35/2,142.27 = 889.29/x
3. Step 3: Cross multiply
   1,552.35x = 2,142.27 × 889.29
4. Step 4: Simplify right side
   1,552.35x = 1,905,099.29
5. Step 5: Solve for x
   x = 1,905,099.29/1,552.35
6. Step 6: Final answer
   x = 1,227.24