Finding the Fourth Proportional to 2,747.65, 3,791.86 and 1,553.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,747.65 : 3,791.86 = 1,553.10 : x
2. Step 2: Convert to fraction form
   2,747.65/3,791.86 = 1,553.10/x
3. Step 3: Cross multiply
   2,747.65x = 3,791.86 × 1,553.10
4. Step 4: Simplify right side
   2,747.65x = 5,889,139.06
5. Step 5: Solve for x
   x = 5,889,139.06/2,747.65
6. Step 6: Final answer
   x = 2,143.34