Finding the Fourth Proportional to 1,861.30, 2,568.56 and 1,075.33

Step by Step Solution

1. Step 1: Write the proportion equation
   1,861.30 : 2,568.56 = 1,075.33 : x
2. Step 2: Convert to fraction form
   1,861.30/2,568.56 = 1,075.33/x
3. Step 3: Cross multiply
   1,861.30x = 2,568.56 × 1,075.33
4. Step 4: Simplify right side
   1,861.30x = 2,762,049.62
5. Step 5: Solve for x
   x = 2,762,049.62/1,861.30
6. Step 6: Final answer
   x = 1,483.94