Finding the Fourth Proportional to 1,347.96, 2,019.01 and 826.38

Step by Step Solution

1. Step 1: Write the proportion equation
   1,347.96 : 2,019.01 = 826.38 : x
2. Step 2: Convert to fraction form
   1,347.96/2,019.01 = 826.38/x
3. Step 3: Cross multiply
   1,347.96x = 2,019.01 × 826.38
4. Step 4: Simplify right side
   1,347.96x = 1,668,469.48
5. Step 5: Solve for x
   x = 1,668,469.48/1,347.96
6. Step 6: Final answer
   x = 1,237.77