Finding the Fourth Proportional to 2,887.05, 3,986.69 and 1,826.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,887.05 : 3,986.69 = 1,826.76 : x
2. Step 2: Convert to fraction form
   2,887.05/3,986.69 = 1,826.76/x
3. Step 3: Cross multiply
   2,887.05x = 3,986.69 × 1,826.76
4. Step 4: Simplify right side
   2,887.05x = 7,282,716.69
5. Step 5: Solve for x
   x = 7,282,716.69/2,887.05
6. Step 6: Final answer
   x = 2,522.55