Finding the Fourth Proportional to 1,262.81, 1,741.72 and 889.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,262.81 : 1,741.72 = 889.89 : x
2. Step 2: Convert to fraction form
   1,262.81/1,741.72 = 889.89/x
3. Step 3: Cross multiply
   1,262.81x = 1,741.72 × 889.89
4. Step 4: Simplify right side
   1,262.81x = 1,549,939.21
5. Step 5: Solve for x
   x = 1,549,939.21/1,262.81
6. Step 6: Final answer
   x = 1,227.37