Finding the Fourth Proportional to 1,980.81, 2,733.40 and 1,162.49

Step by Step Solution

1. Step 1: Write the proportion equation
   1,980.81 : 2,733.40 = 1,162.49 : x
2. Step 2: Convert to fraction form
   1,980.81/2,733.40 = 1,162.49/x
3. Step 3: Cross multiply
   1,980.81x = 2,733.40 × 1,162.49
4. Step 4: Simplify right side
   1,980.81x = 3,177,545.30
5. Step 5: Solve for x
   x = 3,177,545.30/1,980.81
6. Step 6: Final answer
   x = 1,604.16