Finding the Fourth Proportional to 2,063.08, 2,847.20 and 1,131.60

Step by Step Solution

1. Step 1: Write the proportion equation
   2,063.08 : 2,847.20 = 1,131.60 : x
2. Step 2: Convert to fraction form
   2,063.08/2,847.20 = 1,131.60/x
3. Step 3: Cross multiply
   2,063.08x = 2,847.20 × 1,131.60
4. Step 4: Simplify right side
   2,063.08x = 3,221,891.52
5. Step 5: Solve for x
   x = 3,221,891.52/2,063.08
6. Step 6: Final answer
   x = 1,561.69