Finding the Fourth Proportional to 2,736.76, 3,775.78 and 1,557.53

Step by Step Solution

1. Step 1: Write the proportion equation
   2,736.76 : 3,775.78 = 1,557.53 : x
2. Step 2: Convert to fraction form
   2,736.76/3,775.78 = 1,557.53/x
3. Step 3: Cross multiply
   2,736.76x = 3,775.78 × 1,557.53
4. Step 4: Simplify right side
   2,736.76x = 5,880,890.62
5. Step 5: Solve for x
   x = 5,880,890.62/2,736.76
6. Step 6: Final answer
   x = 2,148.85