Finding the Fourth Proportional to 2,328.42, 3,211.80 and 1,383.96

Step by Step Solution

1. Step 1: Write the proportion equation
   2,328.42 : 3,211.80 = 1,383.96 : x
2. Step 2: Convert to fraction form
   2,328.42/3,211.80 = 1,383.96/x
3. Step 3: Cross multiply
   2,328.42x = 3,211.80 × 1,383.96
4. Step 4: Simplify right side
   2,328.42x = 4,445,002.73
5. Step 5: Solve for x
   x = 4,445,002.73/2,328.42
6. Step 6: Final answer
   x = 1,909.02