Finding the Fourth Proportional to 2,570.69, 3,855.94 and 927.27

Step by Step Solution

1. Step 1: Write the proportion equation
   2,570.69 : 3,855.94 = 927.27 : x
2. Step 2: Convert to fraction form
   2,570.69/3,855.94 = 927.27/x
3. Step 3: Cross multiply
   2,570.69x = 3,855.94 × 927.27
4. Step 4: Simplify right side
   2,570.69x = 3,575,495.17
5. Step 5: Solve for x
   x = 3,575,495.17/2,570.69
6. Step 6: Final answer
   x = 1,390.87