Finding the Fourth Proportional to 1,397.30, 2,093.55 and 738.20

Step by Step Solution

1. Step 1: Write the proportion equation
   1,397.30 : 2,093.55 = 738.20 : x
2. Step 2: Convert to fraction form
   1,397.30/2,093.55 = 738.20/x
3. Step 3: Cross multiply
   1,397.30x = 2,093.55 × 738.20
4. Step 4: Simplify right side
   1,397.30x = 1,545,458.61
5. Step 5: Solve for x
   x = 1,545,458.61/1,397.30
6. Step 6: Final answer
   x = 1,106.03