Finding the Fourth Proportional to 2,019.43, 3,030.77 and 1,045.81

Step by Step Solution

1. Step 1: Write the proportion equation
   2,019.43 : 3,030.77 = 1,045.81 : x
2. Step 2: Convert to fraction form
   2,019.43/3,030.77 = 1,045.81/x
3. Step 3: Cross multiply
   2,019.43x = 3,030.77 × 1,045.81
4. Step 4: Simplify right side
   2,019.43x = 3,169,609.57
5. Step 5: Solve for x
   x = 3,169,609.57/2,019.43
6. Step 6: Final answer
   x = 1,569.56