Finding the Fourth Proportional to 2,073.40, 2,857.62 and 1,574.92

Step by Step Solution

1. Step 1: Write the proportion equation
   2,073.40 : 2,857.62 = 1,574.92 : x
2. Step 2: Convert to fraction form
   2,073.40/2,857.62 = 1,574.92/x
3. Step 3: Cross multiply
   2,073.40x = 2,857.62 × 1,574.92
4. Step 4: Simplify right side
   2,073.40x = 4,500,522.89
5. Step 5: Solve for x
   x = 4,500,522.89/2,073.40
6. Step 6: Final answer
   x = 2,170.60