Finding the Fourth Proportional to 2,081.48, 3,123.45 and 1,107.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,081.48 : 3,123.45 = 1,107.59 : x
2. Step 2: Convert to fraction form
   2,081.48/3,123.45 = 1,107.59/x
3. Step 3: Cross multiply
   2,081.48x = 3,123.45 × 1,107.59
4. Step 4: Simplify right side
   2,081.48x = 3,459,486.37
5. Step 5: Solve for x
   x = 3,459,486.37/2,081.48
6. Step 6: Final answer
   x = 1,662.04