Finding the Fourth Proportional to 1,791.67, 2,477.78 and 1,570.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,791.67 : 2,477.78 = 1,570.27 : x
2. Step 2: Convert to fraction form
   1,791.67/2,477.78 = 1,570.27/x
3. Step 3: Cross multiply
   1,791.67x = 2,477.78 × 1,570.27
4. Step 4: Simplify right side
   1,791.67x = 3,890,783.60
5. Step 5: Solve for x
   x = 3,890,783.60/1,791.67
6. Step 6: Final answer
   x = 2,171.60