Finding the Fourth Proportional to 2,555.47, 3,830 and 1,092.91

Step by Step Solution

1. Step 1: Write the proportion equation
   2,555.47 : 3,830 = 1,092.91 : x
2. Step 2: Convert to fraction form
   2,555.47/3,830 = 1,092.91/x
3. Step 3: Cross multiply
   2,555.47x = 3,830 × 1,092.91
4. Step 4: Simplify right side
   2,555.47x = 4,185,845.30
5. Step 5: Solve for x
   x = 4,185,845.30/2,555.47
6. Step 6: Final answer
   x = 1,637.99