Finding the Fourth Proportional to 2,736.65, 3,776.61 and 1,557.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,736.65 : 3,776.61 = 1,557.72 : x
2. Step 2: Convert to fraction form
   2,736.65/3,776.61 = 1,557.72/x
3. Step 3: Cross multiply
   2,736.65x = 3,776.61 × 1,557.72
4. Step 4: Simplify right side
   2,736.65x = 5,882,900.93
5. Step 5: Solve for x
   x = 5,882,900.93/2,736.65
6. Step 6: Final answer
   x = 2,149.67