Finding the Fourth Proportional to 2,063.16, 2,847.12 and 1,131.64

Step by Step Solution

1. Step 1: Write the proportion equation
   2,063.16 : 2,847.12 = 1,131.64 : x
2. Step 2: Convert to fraction form
   2,063.16/2,847.12 = 1,131.64/x
3. Step 3: Cross multiply
   2,063.16x = 2,847.12 × 1,131.64
4. Step 4: Simplify right side
   2,063.16x = 3,221,914.88
5. Step 5: Solve for x
   x = 3,221,914.88/2,063.16
6. Step 6: Final answer
   x = 1,561.64