Finding the Fourth Proportional to 2,443.80, 3,666.32 and 983.92

Step by Step Solution

1. Step 1: Write the proportion equation
   2,443.80 : 3,666.32 = 983.92 : x
2. Step 2: Convert to fraction form
   2,443.80/3,666.32 = 983.92/x
3. Step 3: Cross multiply
   2,443.80x = 3,666.32 × 983.92
4. Step 4: Simplify right side
   2,443.80x = 3,607,365.57
5. Step 5: Solve for x
   x = 3,607,365.57/2,443.80
6. Step 6: Final answer
   x = 1,476.13