Finding the Fourth Proportional to 3,849.90, 5,312.88 and 2,081.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,849.90 : 5,312.88 = 2,081.50 : x
2. Step 2: Convert to fraction form
   3,849.90/5,312.88 = 2,081.50/x
3. Step 3: Cross multiply
   3,849.90x = 5,312.88 × 2,081.50
4. Step 4: Simplify right side
   3,849.90x = 11,058,759.72
5. Step 5: Solve for x
   x = 11,058,759.72/3,849.90
6. Step 6: Final answer
   x = 2,872.48