Finding the Fourth Proportional to 2,194.90, 3,028.69 and 1,310.51

Step by Step Solution

1. Step 1: Write the proportion equation
   2,194.90 : 3,028.69 = 1,310.51 : x
2. Step 2: Convert to fraction form
   2,194.90/3,028.69 = 1,310.51/x
3. Step 3: Cross multiply
   2,194.90x = 3,028.69 × 1,310.51
4. Step 4: Simplify right side
   2,194.90x = 3,969,128.53
5. Step 5: Solve for x
   x = 3,969,128.53/2,194.90
6. Step 6: Final answer
   x = 1,808.34