Finding the Fourth Proportional to 1,949.71, 2,690.61 and 1,065.53

Step by Step Solution

1. Step 1: Write the proportion equation
   1,949.71 : 2,690.61 = 1,065.53 : x
2. Step 2: Convert to fraction form
   1,949.71/2,690.61 = 1,065.53/x
3. Step 3: Cross multiply
   1,949.71x = 2,690.61 × 1,065.53
4. Step 4: Simplify right side
   1,949.71x = 2,866,906.89
5. Step 5: Solve for x
   x = 2,866,906.89/1,949.71
6. Step 6: Final answer
   x = 1,470.43