Finding the Fourth Proportional to 1,441.80, 1,990.52 and 1,109.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,441.80 : 1,990.52 = 1,109.56 : x
2. Step 2: Convert to fraction form
   1,441.80/1,990.52 = 1,109.56/x
3. Step 3: Cross multiply
   1,441.80x = 1,990.52 × 1,109.56
4. Step 4: Simplify right side
   1,441.80x = 2,208,601.37
5. Step 5: Solve for x
   x = 2,208,601.37/1,441.80
6. Step 6: Final answer
   x = 1,531.84