Finding the Fourth Proportional to 2,418.48, 3,335.52 and 1,621.94

Step by Step Solution

1. Step 1: Write the proportion equation
   2,418.48 : 3,335.52 = 1,621.94 : x
2. Step 2: Convert to fraction form
   2,418.48/3,335.52 = 1,621.94/x
3. Step 3: Cross multiply
   2,418.48x = 3,335.52 × 1,621.94
4. Step 4: Simplify right side
   2,418.48x = 5,409,996.63
5. Step 5: Solve for x
   x = 5,409,996.63/2,418.48
6. Step 6: Final answer
   x = 2,236.94