Finding the Fourth Proportional to 1,338.89, 1,847.79 and 749.62

Step by Step Solution

1. Step 1: Write the proportion equation
   1,338.89 : 1,847.79 = 749.62 : x
2. Step 2: Convert to fraction form
   1,338.89/1,847.79 = 749.62/x
3. Step 3: Cross multiply
   1,338.89x = 1,847.79 × 749.62
4. Step 4: Simplify right side
   1,338.89x = 1,385,140.34
5. Step 5: Solve for x
   x = 1,385,140.34/1,338.89
6. Step 6: Final answer
   x = 1,034.54