Finding the Fourth Proportional to 2,736.72, 3,776.63 and 1,557.63

Step by Step Solution

1. Step 1: Write the proportion equation
   2,736.72 : 3,776.63 = 1,557.63 : x
2. Step 2: Convert to fraction form
   2,736.72/3,776.63 = 1,557.63/x
3. Step 3: Cross multiply
   2,736.72x = 3,776.63 × 1,557.63
4. Step 4: Simplify right side
   2,736.72x = 5,882,584.40
5. Step 5: Solve for x
   x = 5,882,584.40/2,736.72
6. Step 6: Final answer
   x = 2,149.50