Finding the Fourth Proportional to 2,280.23, 3,146.72 and 1,383.67

Step by Step Solution

1. Step 1: Write the proportion equation
   2,280.23 : 3,146.72 = 1,383.67 : x
2. Step 2: Convert to fraction form
   2,280.23/3,146.72 = 1,383.67/x
3. Step 3: Cross multiply
   2,280.23x = 3,146.72 × 1,383.67
4. Step 4: Simplify right side
   2,280.23x = 4,354,001.38
5. Step 5: Solve for x
   x = 4,354,001.38/2,280.23
6. Step 6: Final answer
   x = 1,909.45