Finding the Fourth Proportional to 2,275.89, 3,411.81 and 888.91

Step by Step Solution

1. Step 1: Write the proportion equation
   2,275.89 : 3,411.81 = 888.91 : x
2. Step 2: Convert to fraction form
   2,275.89/3,411.81 = 888.91/x
3. Step 3: Cross multiply
   2,275.89x = 3,411.81 × 888.91
4. Step 4: Simplify right side
   2,275.89x = 3,032,770.52
5. Step 5: Solve for x
   x = 3,032,770.52/2,275.89
6. Step 6: Final answer
   x = 1,332.56