Finding the Fourth Proportional to 2,694.66, 3,718.72 and 1,515.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,694.66 : 3,718.72 = 1,515.72 : x
2. Step 2: Convert to fraction form
   2,694.66/3,718.72 = 1,515.72/x
3. Step 3: Cross multiply
   2,694.66x = 3,718.72 × 1,515.72
4. Step 4: Simplify right side
   2,694.66x = 5,636,538.28
5. Step 5: Solve for x
   x = 5,636,538.28/2,694.66
6. Step 6: Final answer
   x = 2,091.74