Finding the Fourth Proportional to 2,822.49, 4,233.69 and 874.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,822.49 : 4,233.69 = 874.71 : x
2. Step 2: Convert to fraction form
   2,822.49/4,233.69 = 874.71/x
3. Step 3: Cross multiply
   2,822.49x = 4,233.69 × 874.71
4. Step 4: Simplify right side
   2,822.49x = 3,703,250.98
5. Step 5: Solve for x
   x = 3,703,250.98/2,822.49
6. Step 6: Final answer
   x = 1,312.05