Finding the Fourth Proportional to 2,100.67, 3,149.96 and 1,223.46

Step by Step Solution

1. Step 1: Write the proportion equation
   2,100.67 : 3,149.96 = 1,223.46 : x
2. Step 2: Convert to fraction form
   2,100.67/3,149.96 = 1,223.46/x
3. Step 3: Cross multiply
   2,100.67x = 3,149.96 × 1,223.46
4. Step 4: Simplify right side
   2,100.67x = 3,853,843.94
5. Step 5: Solve for x
   x = 3,853,843.94/2,100.67
6. Step 6: Final answer
   x = 1,834.58