Finding the Fourth Proportional to 1,570.09, 2,165.98 and 1,073.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,570.09 : 2,165.98 = 1,073.42 : x
2. Step 2: Convert to fraction form
   1,570.09/2,165.98 = 1,073.42/x
3. Step 3: Cross multiply
   1,570.09x = 2,165.98 × 1,073.42
4. Step 4: Simplify right side
   1,570.09x = 2,325,000.88
5. Step 5: Solve for x
   x = 2,325,000.88/1,570.09
6. Step 6: Final answer
   x = 1,480.81