Finding the Fourth Proportional to 2,275.86, 3,412.27 and 889.32

Step by Step Solution

1. Step 1: Write the proportion equation
   2,275.86 : 3,412.27 = 889.32 : x
2. Step 2: Convert to fraction form
   2,275.86/3,412.27 = 889.32/x
3. Step 3: Cross multiply
   2,275.86x = 3,412.27 × 889.32
4. Step 4: Simplify right side
   2,275.86x = 3,034,597.73
5. Step 5: Solve for x
   x = 3,034,597.73/2,275.86
6. Step 6: Final answer
   x = 1,333.39