Finding the Fourth Proportional to 2,570.88, 3,845.33 and 2,146.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,570.88 : 3,845.33 = 2,146.15 : x
2. Step 2: Convert to fraction form
   2,570.88/3,845.33 = 2,146.15/x
3. Step 3: Cross multiply
   2,570.88x = 3,845.33 × 2,146.15
4. Step 4: Simplify right side
   2,570.88x = 8,252,654.98
5. Step 5: Solve for x
   x = 8,252,654.98/2,570.88
6. Step 6: Final answer
   x = 3,210.05