Finding the Fourth Proportional to 1,571.83, 2,169.31 and 942.70

Step by Step Solution

1. Step 1: Write the proportion equation
   1,571.83 : 2,169.31 = 942.70 : x
2. Step 2: Convert to fraction form
   1,571.83/2,169.31 = 942.70/x
3. Step 3: Cross multiply
   1,571.83x = 2,169.31 × 942.70
4. Step 4: Simplify right side
   1,571.83x = 2,045,004.82
5. Step 5: Solve for x
   x = 2,045,004.82/1,571.83
6. Step 6: Final answer
   x = 1,301.04