Finding the Fourth Proportional to 1,861.53, 2,568.71 and 1,075.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,861.53 : 2,568.71 = 1,075.83 : x
2. Step 2: Convert to fraction form
   1,861.53/2,568.71 = 1,075.83/x
3. Step 3: Cross multiply
   1,861.53x = 2,568.71 × 1,075.83
4. Step 4: Simplify right side
   1,861.53x = 2,763,495.28
5. Step 5: Solve for x
   x = 2,763,495.28/1,861.53
6. Step 6: Final answer
   x = 1,484.53