Finding the Fourth Proportional to 2,063.40, 2,847.50 and 1,131.90

Step by Step Solution

1. Step 1: Write the proportion equation
   2,063.40 : 2,847.50 = 1,131.90 : x
2. Step 2: Convert to fraction form
   2,063.40/2,847.50 = 1,131.90/x
3. Step 3: Cross multiply
   2,063.40x = 2,847.50 × 1,131.90
4. Step 4: Simplify right side
   2,063.40x = 3,223,085.25
5. Step 5: Solve for x
   x = 3,223,085.25/2,063.40
6. Step 6: Final answer
   x = 1,562.03