Finding the Fourth Proportional to 2,549.80, 3,518.78 and 1,430.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,549.80 : 3,518.78 = 1,430.82 : x
2. Step 2: Convert to fraction form
   2,549.80/3,518.78 = 1,430.82/x
3. Step 3: Cross multiply
   2,549.80x = 3,518.78 × 1,430.82
4. Step 4: Simplify right side
   2,549.80x = 5,034,744.38
5. Step 5: Solve for x
   x = 5,034,744.38/2,549.80
6. Step 6: Final answer
   x = 1,974.57