Finding the Fourth Proportional to 2,409.16, 3,612.51 and 1,109.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,409.16 : 3,612.51 = 1,109.50 : x
2. Step 2: Convert to fraction form
   2,409.16/3,612.51 = 1,109.50/x
3. Step 3: Cross multiply
   2,409.16x = 3,612.51 × 1,109.50
4. Step 4: Simplify right side
   2,409.16x = 4,008,079.85
5. Step 5: Solve for x
   x = 4,008,079.85/2,409.16
6. Step 6: Final answer
   x = 1,663.68