Finding the Fourth Proportional to 2,542.35, 3,815.15 and 1,081.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,542.35 : 3,815.15 = 1,081.50 : x
2. Step 2: Convert to fraction form
   2,542.35/3,815.15 = 1,081.50/x
3. Step 3: Cross multiply
   2,542.35x = 3,815.15 × 1,081.50
4. Step 4: Simplify right side
   2,542.35x = 4,126,079.32
5. Step 5: Solve for x
   x = 4,126,079.32/2,542.35
6. Step 6: Final answer
   x = 1,622.94