Finding the Fourth Proportional to 3,440.54, 5,160.18 and 1,131.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,440.54 : 5,160.18 = 1,131.50 : x
2. Step 2: Convert to fraction form
   3,440.54/5,160.18 = 1,131.50/x
3. Step 3: Cross multiply
   3,440.54x = 5,160.18 × 1,131.50
4. Step 4: Simplify right side
   3,440.54x = 5,838,743.67
5. Step 5: Solve for x
   x = 5,838,743.67/3,440.54
6. Step 6: Final answer
   x = 1,697.04