Finding the Fourth Proportional to 2,890.69, 4,336.72 and 942.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,890.69 : 4,336.72 = 942.89 : x
2. Step 2: Convert to fraction form
   2,890.69/4,336.72 = 942.89/x
3. Step 3: Cross multiply
   2,890.69x = 4,336.72 × 942.89
4. Step 4: Simplify right side
   2,890.69x = 4,089,025.88
5. Step 5: Solve for x
   x = 4,089,025.88/2,890.69
6. Step 6: Final answer
   x = 1,414.55