Finding the Fourth Proportional to 2,053.45, 3,081.89 and 1,066.87

Step by Step Solution

1. Step 1: Write the proportion equation
   2,053.45 : 3,081.89 = 1,066.87 : x
2. Step 2: Convert to fraction form
   2,053.45/3,081.89 = 1,066.87/x
3. Step 3: Cross multiply
   2,053.45x = 3,081.89 × 1,066.87
4. Step 4: Simplify right side
   2,053.45x = 3,287,982.50
5. Step 5: Solve for x
   x = 3,287,982.50/2,053.45
6. Step 6: Final answer
   x = 1,601.20