Finding the Fourth Proportional to 1,849.10, 2,772.69 and 1,638.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,849.10 : 2,772.69 = 1,638.56 : x
2. Step 2: Convert to fraction form
   1,849.10/2,772.69 = 1,638.56/x
3. Step 3: Cross multiply
   1,849.10x = 2,772.69 × 1,638.56
4. Step 4: Simplify right side
   1,849.10x = 4,543,218.93
5. Step 5: Solve for x
   x = 4,543,218.93/1,849.10
6. Step 6: Final answer
   x = 2,456.99