Finding the Fourth Proportional to 1,570.35, 2,350.73 and 1,397.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,570.35 : 2,350.73 = 1,397.55 : x
2. Step 2: Convert to fraction form
   1,570.35/2,350.73 = 1,397.55/x
3. Step 3: Cross multiply
   1,570.35x = 2,350.73 × 1,397.55
4. Step 4: Simplify right side
   1,570.35x = 3,285,255.72
5. Step 5: Solve for x
   x = 3,285,255.72/1,570.35
6. Step 6: Final answer
   x = 2,092.05