Finding the Fourth Proportional to 3,922.83, 5,411.54 and 2,328.78

Step by Step Solution

1. Step 1: Write the proportion equation
   3,922.83 : 5,411.54 = 2,328.78 : x
2. Step 2: Convert to fraction form
   3,922.83/5,411.54 = 2,328.78/x
3. Step 3: Cross multiply
   3,922.83x = 5,411.54 × 2,328.78
4. Step 4: Simplify right side
   3,922.83x = 12,602,312.24
5. Step 5: Solve for x
   x = 12,602,312.24/3,922.83
6. Step 6: Final answer
   x = 3,212.56