Finding the Fourth Proportional to 904.91, 1,247.33 and 738.83

Step by Step Solution

1. Step 1: Write the proportion equation
   904.91 : 1,247.33 = 738.83 : x
2. Step 2: Convert to fraction form
   904.91/1,247.33 = 738.83/x
3. Step 3: Cross multiply
   904.91x = 1,247.33 × 738.83
4. Step 4: Simplify right side
   904.91x = 921,554.89
5. Step 5: Solve for x
   x = 921,554.89/904.91
6. Step 6: Final answer
   x = 1,018.40