Finding the Fourth Proportional to 2,061.73, 2,846.19 and 1,389.70

Step by Step Solution

1. Step 1: Write the proportion equation
   2,061.73 : 2,846.19 = 1,389.70 : x
2. Step 2: Convert to fraction form
   2,061.73/2,846.19 = 1,389.70/x
3. Step 3: Cross multiply
   2,061.73x = 2,846.19 × 1,389.70
4. Step 4: Simplify right side
   2,061.73x = 3,955,350.24
5. Step 5: Solve for x
   x = 3,955,350.24/2,061.73
6. Step 6: Final answer
   x = 1,918.46