Finding the Fourth Proportional to 1,459.27, 2,189.75 and 874.45

Step by Step Solution

1. Step 1: Write the proportion equation
   1,459.27 : 2,189.75 = 874.45 : x
2. Step 2: Convert to fraction form
   1,459.27/2,189.75 = 874.45/x
3. Step 3: Cross multiply
   1,459.27x = 2,189.75 × 874.45
4. Step 4: Simplify right side
   1,459.27x = 1,914,826.89
5. Step 5: Solve for x
   x = 1,914,826.89/1,459.27
6. Step 6: Final answer
   x = 1,312.18