Finding the Fourth Proportional to 2,275.98, 3,415.28 and 889.24

Step by Step Solution

1. Step 1: Write the proportion equation
   2,275.98 : 3,415.28 = 889.24 : x
2. Step 2: Convert to fraction form
   2,275.98/3,415.28 = 889.24/x
3. Step 3: Cross multiply
   2,275.98x = 3,415.28 × 889.24
4. Step 4: Simplify right side
   2,275.98x = 3,037,003.59
5. Step 5: Solve for x
   x = 3,037,003.59/2,275.98
6. Step 6: Final answer
   x = 1,334.37