Finding the Fourth Proportional to 3,810.52, 5,258.72 and 2,131.83

Step by Step Solution

1. Step 1: Write the proportion equation
   3,810.52 : 5,258.72 = 2,131.83 : x
2. Step 2: Convert to fraction form
   3,810.52/5,258.72 = 2,131.83/x
3. Step 3: Cross multiply
   3,810.52x = 5,258.72 × 2,131.83
4. Step 4: Simplify right side
   3,810.52x = 11,210,680.00
5. Step 5: Solve for x
   x = 11,210,680.00/3,810.52
6. Step 6: Final answer
   x = 2,942.03