Finding the Fourth Proportional to 2,089.81, 2,883.98 and 1,145.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,089.81 : 2,883.98 = 1,145.59 : x
2. Step 2: Convert to fraction form
   2,089.81/2,883.98 = 1,145.59/x
3. Step 3: Cross multiply
   2,089.81x = 2,883.98 × 1,145.59
4. Step 4: Simplify right side
   2,089.81x = 3,303,858.65
5. Step 5: Solve for x
   x = 3,303,858.65/2,089.81
6. Step 6: Final answer
   x = 1,580.94