Finding the Fourth Proportional to 1,438.79, 1,986.34 and 941.94

Step by Step Solution

1. Step 1: Write the proportion equation
   1,438.79 : 1,986.34 = 941.94 : x
2. Step 2: Convert to fraction form
   1,438.79/1,986.34 = 941.94/x
3. Step 3: Cross multiply
   1,438.79x = 1,986.34 × 941.94
4. Step 4: Simplify right side
   1,438.79x = 1,871,013.10
5. Step 5: Solve for x
   x = 1,871,013.10/1,438.79
6. Step 6: Final answer
   x = 1,300.41