Finding the Fourth Proportional to 3,407.74, 5,111.91 and 942.56

Step by Step Solution

1. Step 1: Write the proportion equation
   3,407.74 : 5,111.91 = 942.56 : x
2. Step 2: Convert to fraction form
   3,407.74/5,111.91 = 942.56/x
3. Step 3: Cross multiply
   3,407.74x = 5,111.91 × 942.56
4. Step 4: Simplify right side
   3,407.74x = 4,818,281.89
5. Step 5: Solve for x
   x = 4,818,281.89/3,407.74
6. Step 6: Final answer
   x = 1,413.92