Finding the Fourth Proportional to 2,840.90, 4,258.20 and 1,196.96

Step by Step Solution

1. Step 1: Write the proportion equation
   2,840.90 : 4,258.20 = 1,196.96 : x
2. Step 2: Convert to fraction form
   2,840.90/4,258.20 = 1,196.96/x
3. Step 3: Cross multiply
   2,840.90x = 4,258.20 × 1,196.96
4. Step 4: Simplify right side
   2,840.90x = 5,096,895.07
5. Step 5: Solve for x
   x = 5,096,895.07/2,840.90
6. Step 6: Final answer
   x = 1,794.11