Finding the Fourth Proportional to 2,435.76, 3,651.48 and 1,818.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,435.76 : 3,651.48 = 1,818.72 : x
2. Step 2: Convert to fraction form
   2,435.76/3,651.48 = 1,818.72/x
3. Step 3: Cross multiply
   2,435.76x = 3,651.48 × 1,818.72
4. Step 4: Simplify right side
   2,435.76x = 6,641,019.71
5. Step 5: Solve for x
   x = 6,641,019.71/2,435.76
6. Step 6: Final answer
   x = 2,726.47