Finding the Fourth Proportional to 2,882.02, 3,978.84 and 1,939.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,882.02 : 3,978.84 = 1,939.18 : x
2. Step 2: Convert to fraction form
   2,882.02/3,978.84 = 1,939.18/x
3. Step 3: Cross multiply
   2,882.02x = 3,978.84 × 1,939.18
4. Step 4: Simplify right side
   2,882.02x = 7,715,686.95
5. Step 5: Solve for x
   x = 7,715,686.95/2,882.02
6. Step 6: Final answer
   x = 2,677.18