Finding the Fourth Proportional to 2,870.89, 3,962.46 and 1,822.75

Step by Step Solution

1. Step 1: Write the proportion equation
   2,870.89 : 3,962.46 = 1,822.75 : x
2. Step 2: Convert to fraction form
   2,870.89/3,962.46 = 1,822.75/x
3. Step 3: Cross multiply
   2,870.89x = 3,962.46 × 1,822.75
4. Step 4: Simplify right side
   2,870.89x = 7,222,573.97
5. Step 5: Solve for x
   x = 7,222,573.97/2,870.89
6. Step 6: Final answer
   x = 2,515.80