Finding the Fourth Proportional to 2,162.26, 2,983.50 and 1,278.22

Step by Step Solution

1. Step 1: Write the proportion equation
   2,162.26 : 2,983.50 = 1,278.22 : x
2. Step 2: Convert to fraction form
   2,162.26/2,983.50 = 1,278.22/x
3. Step 3: Cross multiply
   2,162.26x = 2,983.50 × 1,278.22
4. Step 4: Simplify right side
   2,162.26x = 3,813,569.37
5. Step 5: Solve for x
   x = 3,813,569.37/2,162.26
6. Step 6: Final answer
   x = 1,763.70