Finding the Fourth Proportional to 2,555.92, 3,839.34 and 1,830.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,555.92 : 3,839.34 = 1,830.16 : x
2. Step 2: Convert to fraction form
   2,555.92/3,839.34 = 1,830.16/x
3. Step 3: Cross multiply
   2,555.92x = 3,839.34 × 1,830.16
4. Step 4: Simplify right side
   2,555.92x = 7,026,606.49
5. Step 5: Solve for x
   x = 7,026,606.49/2,555.92
6. Step 6: Final answer
   x = 2,749.15