Finding the Fourth Proportional to 1,503.15, 2,074.33 and 874.04

Step by Step Solution

1. Step 1: Write the proportion equation
   1,503.15 : 2,074.33 = 874.04 : x
2. Step 2: Convert to fraction form
   1,503.15/2,074.33 = 874.04/x
3. Step 3: Cross multiply
   1,503.15x = 2,074.33 × 874.04
4. Step 4: Simplify right side
   1,503.15x = 1,813,047.39
5. Step 5: Solve for x
   x = 1,813,047.39/1,503.15
6. Step 6: Final answer
   x = 1,206.17