Finding the Fourth Proportional to 2,783.50, 4,174.26 and 1,223.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,783.50 : 4,174.26 = 1,223.05 : x
2. Step 2: Convert to fraction form
   2,783.50/4,174.26 = 1,223.05/x
3. Step 3: Cross multiply
   2,783.50x = 4,174.26 × 1,223.05
4. Step 4: Simplify right side
   2,783.50x = 5,105,328.69
5. Step 5: Solve for x
   x = 5,105,328.69/2,783.50
6. Step 6: Final answer
   x = 1,834.14