Finding the Fourth Proportional to 2,454.42, 3,678.04 and 1,138.58

Step by Step Solution

1. Step 1: Write the proportion equation
   2,454.42 : 3,678.04 = 1,138.58 : x
2. Step 2: Convert to fraction form
   2,454.42/3,678.04 = 1,138.58/x
3. Step 3: Cross multiply
   2,454.42x = 3,678.04 × 1,138.58
4. Step 4: Simplify right side
   2,454.42x = 4,187,742.78
5. Step 5: Solve for x
   x = 4,187,742.78/2,454.42
6. Step 6: Final answer
   x = 1,706.20