Finding the Fourth Proportional to 2,418.81, 3,337.76 and 1,356.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,418.81 : 3,337.76 = 1,356.42 : x
2. Step 2: Convert to fraction form
   2,418.81/3,337.76 = 1,356.42/x
3. Step 3: Cross multiply
   2,418.81x = 3,337.76 × 1,356.42
4. Step 4: Simplify right side
   2,418.81x = 4,527,404.42
5. Step 5: Solve for x
   x = 4,527,404.42/2,418.81
6. Step 6: Final answer
   x = 1,871.75