Finding the Fourth Proportional to 2,763.69, 4,147.94 and 1,430.39

Step by Step Solution

1. Step 1: Write the proportion equation
   2,763.69 : 4,147.94 = 1,430.39 : x
2. Step 2: Convert to fraction form
   2,763.69/4,147.94 = 1,430.39/x
3. Step 3: Cross multiply
   2,763.69x = 4,147.94 × 1,430.39
4. Step 4: Simplify right side
   2,763.69x = 5,933,185.84
5. Step 5: Solve for x
   x = 5,933,185.84/2,763.69
6. Step 6: Final answer
   x = 2,146.84