Finding the Fourth Proportional to 2,086.26, 2,877.86 and 1,488.90

Step by Step Solution

1. Step 1: Write the proportion equation
   2,086.26 : 2,877.86 = 1,488.90 : x
2. Step 2: Convert to fraction form
   2,086.26/2,877.86 = 1,488.90/x
3. Step 3: Cross multiply
   2,086.26x = 2,877.86 × 1,488.90
4. Step 4: Simplify right side
   2,086.26x = 4,284,845.75
5. Step 5: Solve for x
   x = 4,284,845.75/2,086.26
6. Step 6: Final answer
   x = 2,053.84