Finding the Fourth Proportional to 3,407.51, 5,111.54 and 942.55

Step by Step Solution

1. Step 1: Write the proportion equation
   3,407.51 : 5,111.54 = 942.55 : x
2. Step 2: Convert to fraction form
   3,407.51/5,111.54 = 942.55/x
3. Step 3: Cross multiply
   3,407.51x = 5,111.54 × 942.55
4. Step 4: Simplify right side
   3,407.51x = 4,817,851.76
5. Step 5: Solve for x
   x = 4,817,851.76/3,407.51
6. Step 6: Final answer
   x = 1,413.89