Finding the Fourth Proportional to 1,336.70, 1,844.72 and 747.22

Step by Step Solution

1. Step 1: Write the proportion equation
   1,336.70 : 1,844.72 = 747.22 : x
2. Step 2: Convert to fraction form
   1,336.70/1,844.72 = 747.22/x
3. Step 3: Cross multiply
   1,336.70x = 1,844.72 × 747.22
4. Step 4: Simplify right side
   1,336.70x = 1,378,411.68
5. Step 5: Solve for x
   x = 1,378,411.68/1,336.70
6. Step 6: Final answer
   x = 1,031.20