Finding the Fourth Proportional to 1,455.89, 2,008.77 and 889.02

Step by Step Solution

1. Step 1: Write the proportion equation
   1,455.89 : 2,008.77 = 889.02 : x
2. Step 2: Convert to fraction form
   1,455.89/2,008.77 = 889.02/x
3. Step 3: Cross multiply
   1,455.89x = 2,008.77 × 889.02
4. Step 4: Simplify right side
   1,455.89x = 1,785,833.37
5. Step 5: Solve for x
   x = 1,785,833.37/1,455.89
6. Step 6: Final answer
   x = 1,226.63