Finding the Fourth Proportional to 1,978.24, 2,965.53 and 744.81

Step by Step Solution

1. Step 1: Write the proportion equation
   1,978.24 : 2,965.53 = 744.81 : x
2. Step 2: Convert to fraction form
   1,978.24/2,965.53 = 744.81/x
3. Step 3: Cross multiply
   1,978.24x = 2,965.53 × 744.81
4. Step 4: Simplify right side
   1,978.24x = 2,208,756.40
5. Step 5: Solve for x
   x = 2,208,756.40/1,978.24
6. Step 6: Final answer
   x = 1,116.53