Finding the Fourth Proportional to 1,949.45, 2,693.16 and 1,278.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,949.45 : 2,693.16 = 1,278.83 : x
2. Step 2: Convert to fraction form
   1,949.45/2,693.16 = 1,278.83/x
3. Step 3: Cross multiply
   1,949.45x = 2,693.16 × 1,278.83
4. Step 4: Simplify right side
   1,949.45x = 3,444,080.34
5. Step 5: Solve for x
   x = 3,444,080.34/1,949.45
6. Step 6: Final answer
   x = 1,766.70