Finding the Fourth Proportional to 2,945.81, 4,418.69 and 754.53

Step by Step Solution

1. Step 1: Write the proportion equation
   2,945.81 : 4,418.69 = 754.53 : x
2. Step 2: Convert to fraction form
   2,945.81/4,418.69 = 754.53/x
3. Step 3: Cross multiply
   2,945.81x = 4,418.69 × 754.53
4. Step 4: Simplify right side
   2,945.81x = 3,334,030.39
5. Step 5: Solve for x
   x = 3,334,030.39/2,945.81
6. Step 6: Final answer
   x = 1,131.79