Finding the Fourth Proportional to 2,118.42, 3,178.80 and 1,467.90

Step by Step Solution

1. Step 1: Write the proportion equation
   2,118.42 : 3,178.80 = 1,467.90 : x
2. Step 2: Convert to fraction form
   2,118.42/3,178.80 = 1,467.90/x
3. Step 3: Cross multiply
   2,118.42x = 3,178.80 × 1,467.90
4. Step 4: Simplify right side
   2,118.42x = 4,666,160.52
5. Step 5: Solve for x
   x = 4,666,160.52/2,118.42
6. Step 6: Final answer
   x = 2,202.66