Finding the Fourth Proportional to 2,288.78, 3,431.12 and 1,467.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,288.78 : 3,431.12 = 1,467.30 : x
2. Step 2: Convert to fraction form
   2,288.78/3,431.12 = 1,467.30/x
3. Step 3: Cross multiply
   2,288.78x = 3,431.12 × 1,467.30
4. Step 4: Simplify right side
   2,288.78x = 5,034,482.38
5. Step 5: Solve for x
   x = 5,034,482.38/2,288.78
6. Step 6: Final answer
   x = 2,199.64