Finding the Fourth Proportional to 2,063.31, 2,847.35 and 1,131.81

Step by Step Solution

1. Step 1: Write the proportion equation
   2,063.31 : 2,847.35 = 1,131.81 : x
2. Step 2: Convert to fraction form
   2,063.31/2,847.35 = 1,131.81/x
3. Step 3: Cross multiply
   2,063.31x = 2,847.35 × 1,131.81
4. Step 4: Simplify right side
   2,063.31x = 3,222,653.54
5. Step 5: Solve for x
   x = 3,222,653.54/2,063.31
6. Step 6: Final answer
   x = 1,561.89