Finding the Fourth Proportional to 2,716.90, 3,751.00 and 2,086.21

Step by Step Solution

1. Step 1: Write the proportion equation
   2,716.90 : 3,751.00 = 2,086.21 : x
2. Step 2: Convert to fraction form
   2,716.90/3,751.00 = 2,086.21/x
3. Step 3: Cross multiply
   2,716.90x = 3,751.00 × 2,086.21
4. Step 4: Simplify right side
   2,716.90x = 7,825,349.15
5. Step 5: Solve for x
   x = 7,825,349.15/2,716.90
6. Step 6: Final answer
   x = 2,880.24