Finding the Fourth Proportional to 2,736.40, 3,776.27 and 1,557.47

Step by Step Solution

1. Step 1: Write the proportion equation
   2,736.40 : 3,776.27 = 1,557.47 : x
2. Step 2: Convert to fraction form
   2,736.40/3,776.27 = 1,557.47/x
3. Step 3: Cross multiply
   2,736.40x = 3,776.27 × 1,557.47
4. Step 4: Simplify right side
   2,736.40x = 5,881,428.89
5. Step 5: Solve for x
   x = 5,881,428.89/2,736.40
6. Step 6: Final answer
   x = 2,149.33