Finding the Fourth Proportional to 2,871.05, 3,962.72 and 1,822.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,871.05 : 3,962.72 = 1,822.50 : x
2. Step 2: Convert to fraction form
   2,871.05/3,962.72 = 1,822.50/x
3. Step 3: Cross multiply
   2,871.05x = 3,962.72 × 1,822.50
4. Step 4: Simplify right side
   2,871.05x = 7,222,061.76
5. Step 5: Solve for x
   x = 7,222,061.76/2,871.05
6. Step 6: Final answer
   x = 2,515.48