Finding the Fourth Proportional to 1,346.24, 1,858.61 and 874.28

Step by Step Solution

1. Step 1: Write the proportion equation
   1,346.24 : 1,858.61 = 874.28 : x
2. Step 2: Convert to fraction form
   1,346.24/1,858.61 = 874.28/x
3. Step 3: Cross multiply
   1,346.24x = 1,858.61 × 874.28
4. Step 4: Simplify right side
   1,346.24x = 1,624,945.55
5. Step 5: Solve for x
   x = 1,624,945.55/1,346.24
6. Step 6: Final answer
   x = 1,207.03