Finding the Fourth Proportional to 2,086.97, 2,877.93 and 1,379.43

Step by Step Solution

1. Step 1: Write the proportion equation
   2,086.97 : 2,877.93 = 1,379.43 : x
2. Step 2: Convert to fraction form
   2,086.97/2,877.93 = 1,379.43/x
3. Step 3: Cross multiply
   2,086.97x = 2,877.93 × 1,379.43
4. Step 4: Simplify right side
   2,086.97x = 3,969,902.98
5. Step 5: Solve for x
   x = 3,969,902.98/2,086.97
6. Step 6: Final answer
   x = 1,902.24