Finding the Fourth Proportional to 1,462.38, 2,196.53 and 878.49

Step by Step Solution

1. Step 1: Write the proportion equation
   1,462.38 : 2,196.53 = 878.49 : x
2. Step 2: Convert to fraction form
   1,462.38/2,196.53 = 878.49/x
3. Step 3: Cross multiply
   1,462.38x = 2,196.53 × 878.49
4. Step 4: Simplify right side
   1,462.38x = 1,929,625.25
5. Step 5: Solve for x
   x = 1,929,625.25/1,462.38
6. Step 6: Final answer
   x = 1,319.51