Finding the Fourth Proportional to 2,068.89, 2,855.48 and 1,229.43

Step by Step Solution

1. Step 1: Write the proportion equation
   2,068.89 : 2,855.48 = 1,229.43 : x
2. Step 2: Convert to fraction form
   2,068.89/2,855.48 = 1,229.43/x
3. Step 3: Cross multiply
   2,068.89x = 2,855.48 × 1,229.43
4. Step 4: Simplify right side
   2,068.89x = 3,510,600.81
5. Step 5: Solve for x
   x = 3,510,600.81/2,068.89
6. Step 6: Final answer
   x = 1,696.86