Finding the Fourth Proportional to 2,427.89, 3,349.49 and 1,543.37

Step by Step Solution

1. Step 1: Write the proportion equation
   2,427.89 : 3,349.49 = 1,543.37 : x
2. Step 2: Convert to fraction form
   2,427.89/3,349.49 = 1,543.37/x
3. Step 3: Cross multiply
   2,427.89x = 3,349.49 × 1,543.37
4. Step 4: Simplify right side
   2,427.89x = 5,169,477.92
5. Step 5: Solve for x
   x = 5,169,477.92/2,427.89
6. Step 6: Final answer
   x = 2,129.21