Finding the Fourth Proportional to 2,384.09, 3,289.98 and 1,321.77

Step by Step Solution

1. Step 1: Write the proportion equation
   2,384.09 : 3,289.98 = 1,321.77 : x
2. Step 2: Convert to fraction form
   2,384.09/3,289.98 = 1,321.77/x
3. Step 3: Cross multiply
   2,384.09x = 3,289.98 × 1,321.77
4. Step 4: Simplify right side
   2,384.09x = 4,348,596.86
5. Step 5: Solve for x
   x = 4,348,596.86/2,384.09
6. Step 6: Final answer
   x = 1,824.01