Finding the Fourth Proportional to 2,412.08, 3,612.22 and 2,178.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,412.08 : 3,612.22 = 2,178.34 : x
2. Step 2: Convert to fraction form
   2,412.08/3,612.22 = 2,178.34/x
3. Step 3: Cross multiply
   2,412.08x = 3,612.22 × 2,178.34
4. Step 4: Simplify right side
   2,412.08x = 7,868,643.31
5. Step 5: Solve for x
   x = 7,868,643.31/2,412.08
6. Step 6: Final answer
   x = 3,262.18