Finding the Fourth Proportional to 3,109.48, 4,663.40 and 1,160.62

Step by Step Solution

1. Step 1: Write the proportion equation
   3,109.48 : 4,663.40 = 1,160.62 : x
2. Step 2: Convert to fraction form
   3,109.48/4,663.40 = 1,160.62/x
3. Step 3: Cross multiply
   3,109.48x = 4,663.40 × 1,160.62
4. Step 4: Simplify right side
   3,109.48x = 5,412,417.85
5. Step 5: Solve for x
   x = 5,412,417.85/3,109.48
6. Step 6: Final answer
   x = 1,740.62