Finding the Fourth Proportional to 4,061.16, 6,091.98 and 1,139.69

Step by Step Solution

1. Step 1: Write the proportion equation
   4,061.16 : 6,091.98 = 1,139.69 : x
2. Step 2: Convert to fraction form
   4,061.16/6,091.98 = 1,139.69/x
3. Step 3: Cross multiply
   4,061.16x = 6,091.98 × 1,139.69
4. Step 4: Simplify right side
   4,061.16x = 6,942,968.69
5. Step 5: Solve for x
   x = 6,942,968.69/4,061.16
6. Step 6: Final answer
   x = 1,709.60