Finding the Fourth Proportional to 2,194.71, 3,029.09 and 1,310.57

Step by Step Solution

1. Step 1: Write the proportion equation
   2,194.71 : 3,029.09 = 1,310.57 : x
2. Step 2: Convert to fraction form
   2,194.71/3,029.09 = 1,310.57/x
3. Step 3: Cross multiply
   2,194.71x = 3,029.09 × 1,310.57
4. Step 4: Simplify right side
   2,194.71x = 3,969,834.48
5. Step 5: Solve for x
   x = 3,969,834.48/2,194.71
6. Step 6: Final answer
   x = 1,808.82