Finding the Fourth Proportional to 2,218.80, 3,061.85 and 1,273.94

Step by Step Solution

1. Step 1: Write the proportion equation
   2,218.80 : 3,061.85 = 1,273.94 : x
2. Step 2: Convert to fraction form
   2,218.80/3,061.85 = 1,273.94/x
3. Step 3: Cross multiply
   2,218.80x = 3,061.85 × 1,273.94
4. Step 4: Simplify right side
   2,218.80x = 3,900,613.19
5. Step 5: Solve for x
   x = 3,900,613.19/2,218.80
6. Step 6: Final answer
   x = 1,757.98