Finding the Fourth Proportional to 2,870.83, 3,961.88 and 2,248.75

Step by Step Solution

1. Step 1: Write the proportion equation
   2,870.83 : 3,961.88 = 2,248.75 : x
2. Step 2: Convert to fraction form
   2,870.83/3,961.88 = 2,248.75/x
3. Step 3: Cross multiply
   2,870.83x = 3,961.88 × 2,248.75
4. Step 4: Simplify right side
   2,870.83x = 8,909,266.41
5. Step 5: Solve for x
   x = 8,909,266.41/2,870.83
6. Step 6: Final answer
   x = 3,103.38