Finding the Fourth Proportional to 1,462.42, 2,017.20 and 872.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,462.42 : 2,017.20 = 872.50 : x
2. Step 2: Convert to fraction form
   1,462.42/2,017.20 = 872.50/x
3. Step 3: Cross multiply
   1,462.42x = 2,017.20 × 872.50
4. Step 4: Simplify right side
   1,462.42x = 1,760,007
5. Step 5: Solve for x
   x = 1,760,007/1,462.42
6. Step 6: Final answer
   x = 1,203.49