Finding the Fourth Proportional to 1,570.71, 2,166.79 and 1,073.37

Step by Step Solution

1. Step 1: Write the proportion equation
   1,570.71 : 2,166.79 = 1,073.37 : x
2. Step 2: Convert to fraction form
   1,570.71/2,166.79 = 1,073.37/x
3. Step 3: Cross multiply
   1,570.71x = 2,166.79 × 1,073.37
4. Step 4: Simplify right side
   1,570.71x = 2,325,767.38
5. Step 5: Solve for x
   x = 2,325,767.38/1,570.71
6. Step 6: Final answer
   x = 1,480.71