Finding the Fourth Proportional to 2,810.50, 3,878.22 and 2,716.13

Step by Step Solution

1. Step 1: Write the proportion equation
   2,810.50 : 3,878.22 = 2,716.13 : x
2. Step 2: Convert to fraction form
   2,810.50/3,878.22 = 2,716.13/x
3. Step 3: Cross multiply
   2,810.50x = 3,878.22 × 2,716.13
4. Step 4: Simplify right side
   2,810.50x = 10,533,749.69
5. Step 5: Solve for x
   x = 10,533,749.69/2,810.50
6. Step 6: Final answer
   x = 3,748.00