Finding the Fourth Proportional to 2,002.78, 2,763.21 and 1,295.02

Step by Step Solution

1. Step 1: Write the proportion equation
   2,002.78 : 2,763.21 = 1,295.02 : x
2. Step 2: Convert to fraction form
   2,002.78/2,763.21 = 1,295.02/x
3. Step 3: Cross multiply
   2,002.78x = 2,763.21 × 1,295.02
4. Step 4: Simplify right side
   2,002.78x = 3,578,412.21
5. Step 5: Solve for x
   x = 3,578,412.21/2,002.78
6. Step 6: Final answer
   x = 1,786.72