Finding the Fourth Proportional to 2,328.84, 3,213.82 and 1,280.92

Step by Step Solution

1. Step 1: Write the proportion equation
   2,328.84 : 3,213.82 = 1,280.92 : x
2. Step 2: Convert to fraction form
   2,328.84/3,213.82 = 1,280.92/x
3. Step 3: Cross multiply
   2,328.84x = 3,213.82 × 1,280.92
4. Step 4: Simplify right side
   2,328.84x = 4,116,646.31
5. Step 5: Solve for x
   x = 4,116,646.31/2,328.84
6. Step 6: Final answer
   x = 1,767.68