Finding the Fourth Proportional to 1,308.94, 1,806.34 and 749.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,308.94 : 1,806.34 = 749.42 : x
2. Step 2: Convert to fraction form
   1,308.94/1,806.34 = 749.42/x
3. Step 3: Cross multiply
   1,308.94x = 1,806.34 × 749.42
4. Step 4: Simplify right side
   1,308.94x = 1,353,696.42
5. Step 5: Solve for x
   x = 1,353,696.42/1,308.94
6. Step 6: Final answer
   x = 1,034.19