Finding the Fourth Proportional to 1,373.02, 1,894.02 and 874.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,373.02 : 1,894.02 = 874.78 : x
2. Step 2: Convert to fraction form
   1,373.02/1,894.02 = 874.78/x
3. Step 3: Cross multiply
   1,373.02x = 1,894.02 × 874.78
4. Step 4: Simplify right side
   1,373.02x = 1,656,850.82
5. Step 5: Solve for x
   x = 1,656,850.82/1,373.02
6. Step 6: Final answer
   x = 1,206.72