Finding the Fourth Proportional to 3,141.40, 4,711.98 and 1,061.09

Step by Step Solution

1. Step 1: Write the proportion equation
   3,141.40 : 4,711.98 = 1,061.09 : x
2. Step 2: Convert to fraction form
   3,141.40/4,711.98 = 1,061.09/x
3. Step 3: Cross multiply
   3,141.40x = 4,711.98 × 1,061.09
4. Step 4: Simplify right side
   3,141.40x = 4,999,834.86
5. Step 5: Solve for x
   x = 4,999,834.86/3,141.40
6. Step 6: Final answer
   x = 1,591.59