Finding the Fourth Proportional to 3,347.42, 5,017.86 and 1,155.56

Step by Step Solution

1. Step 1: Write the proportion equation
   3,347.42 : 5,017.86 = 1,155.56 : x
2. Step 2: Convert to fraction form
   3,347.42/5,017.86 = 1,155.56/x
3. Step 3: Cross multiply
   3,347.42x = 5,017.86 × 1,155.56
4. Step 4: Simplify right side
   3,347.42x = 5,798,413.21
5. Step 5: Solve for x
   x = 5,798,413.21/3,347.42
6. Step 6: Final answer
   x = 1,732.21