Finding the Fourth Proportional to 1,373.79, 1,896.21 and 949.08

Step by Step Solution

1. Step 1: Write the proportion equation
   1,373.79 : 1,896.21 = 949.08 : x
2. Step 2: Convert to fraction form
   1,373.79/1,896.21 = 949.08/x
3. Step 3: Cross multiply
   1,373.79x = 1,896.21 × 949.08
4. Step 4: Simplify right side
   1,373.79x = 1,799,654.99
5. Step 5: Solve for x
   x = 1,799,654.99/1,373.79
6. Step 6: Final answer
   x = 1,309.99