Finding the Fourth Proportional to 2,355.91, 3,250.42 and 1,570.09

Step by Step Solution

1. Step 1: Write the proportion equation
   2,355.91 : 3,250.42 = 1,570.09 : x
2. Step 2: Convert to fraction form
   2,355.91/3,250.42 = 1,570.09/x
3. Step 3: Cross multiply
   2,355.91x = 3,250.42 × 1,570.09
4. Step 4: Simplify right side
   2,355.91x = 5,103,451.94
5. Step 5: Solve for x
   x = 5,103,451.94/2,355.91
6. Step 6: Final answer
   x = 2,166.23