Finding the Fourth Proportional to 2,108.83, 3,159.20 and 1,181.58

Step by Step Solution

1. Step 1: Write the proportion equation
   2,108.83 : 3,159.20 = 1,181.58 : x
2. Step 2: Convert to fraction form
   2,108.83/3,159.20 = 1,181.58/x
3. Step 3: Cross multiply
   2,108.83x = 3,159.20 × 1,181.58
4. Step 4: Simplify right side
   2,108.83x = 3,732,825.83
5. Step 5: Solve for x
   x = 3,732,825.83/2,108.83
6. Step 6: Final answer
   x = 1,770.09