Finding the Fourth Proportional to 1,635.32, 2,256.76 and 889.29

Step by Step Solution

1. Step 1: Write the proportion equation
   1,635.32 : 2,256.76 = 889.29 : x
2. Step 2: Convert to fraction form
   1,635.32/2,256.76 = 889.29/x
3. Step 3: Cross multiply
   1,635.32x = 2,256.76 × 889.29
4. Step 4: Simplify right side
   1,635.32x = 2,006,914.10
5. Step 5: Solve for x
   x = 2,006,914.10/1,635.32
6. Step 6: Final answer
   x = 1,227.23