Finding the Fourth Proportional to 2,151.96, 3,223.71 and 1,224.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,151.96 : 3,223.71 = 1,224.69 : x
2. Step 2: Convert to fraction form
   2,151.96/3,223.71 = 1,224.69/x
3. Step 3: Cross multiply
   2,151.96x = 3,223.71 × 1,224.69
4. Step 4: Simplify right side
   2,151.96x = 3,948,045.40
5. Step 5: Solve for x
   x = 3,948,045.40/2,151.96
6. Step 6: Final answer
   x = 1,834.63