Finding the Fourth Proportional to 2,736.61, 3,776.54 and 1,557.75

Step by Step Solution

1. Step 1: Write the proportion equation
   2,736.61 : 3,776.54 = 1,557.75 : x
2. Step 2: Convert to fraction form
   2,736.61/3,776.54 = 1,557.75/x
3. Step 3: Cross multiply
   2,736.61x = 3,776.54 × 1,557.75
4. Step 4: Simplify right side
   2,736.61x = 5,882,920.32
5. Step 5: Solve for x
   x = 5,882,920.32/2,736.61
6. Step 6: Final answer
   x = 2,149.71