Finding the Fourth Proportional to 1,409.80, 1,945.54 and 1,176.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,409.80 : 1,945.54 = 1,176.52 : x
2. Step 2: Convert to fraction form
   1,409.80/1,945.54 = 1,176.52/x
3. Step 3: Cross multiply
   1,409.80x = 1,945.54 × 1,176.52
4. Step 4: Simplify right side
   1,409.80x = 2,288,966.72
5. Step 5: Solve for x
   x = 2,288,966.72/1,409.80
6. Step 6: Final answer
   x = 1,623.61