Finding the Fourth Proportional to 1,467.62, 2,025.31 and 878.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,467.62 : 2,025.31 = 878.15 : x
2. Step 2: Convert to fraction form
   1,467.62/2,025.31 = 878.15/x
3. Step 3: Cross multiply
   1,467.62x = 2,025.31 × 878.15
4. Step 4: Simplify right side
   1,467.62x = 1,778,521.59
5. Step 5: Solve for x
   x = 1,778,521.59/1,467.62
6. Step 6: Final answer
   x = 1,211.84