Finding the Fourth Proportional to 2,629.07, 3,943.98 and 1,222.81

Step by Step Solution

1. Step 1: Write the proportion equation
   2,629.07 : 3,943.98 = 1,222.81 : x
2. Step 2: Convert to fraction form
   2,629.07/3,943.98 = 1,222.81/x
3. Step 3: Cross multiply
   2,629.07x = 3,943.98 × 1,222.81
4. Step 4: Simplify right side
   2,629.07x = 4,822,728.32
5. Step 5: Solve for x
   x = 4,822,728.32/2,629.07
6. Step 6: Final answer
   x = 1,834.39