Finding the Fourth Proportional to 2,063.20, 2,847.06 and 1,131.70

Step by Step Solution

1. Step 1: Write the proportion equation
   2,063.20 : 2,847.06 = 1,131.70 : x
2. Step 2: Convert to fraction form
   2,063.20/2,847.06 = 1,131.70/x
3. Step 3: Cross multiply
   2,063.20x = 2,847.06 × 1,131.70
4. Step 4: Simplify right side
   2,063.20x = 3,222,017.80
5. Step 5: Solve for x
   x = 3,222,017.80/2,063.20
6. Step 6: Final answer
   x = 1,561.66