Finding the Fourth Proportional to 2,328.35, 3,212.77 and 1,384.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,328.35 : 3,212.77 = 1,384.12 : x
2. Step 2: Convert to fraction form
   2,328.35/3,212.77 = 1,384.12/x
3. Step 3: Cross multiply
   2,328.35x = 3,212.77 × 1,384.12
4. Step 4: Simplify right side
   2,328.35x = 4,446,852.29
5. Step 5: Solve for x
   x = 4,446,852.29/2,328.35
6. Step 6: Final answer
   x = 1,909.87