Finding the Fourth Proportional to 1,504.12, 2,075.61 and 874.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,504.12 : 2,075.61 = 874.55 : x
2. Step 2: Convert to fraction form
   1,504.12/2,075.61 = 874.55/x
3. Step 3: Cross multiply
   1,504.12x = 2,075.61 × 874.55
4. Step 4: Simplify right side
   1,504.12x = 1,815,216.60
5. Step 5: Solve for x
   x = 1,815,216.60/1,504.12
6. Step 6: Final answer
   x = 1,206.83