Finding the Fourth Proportional to 1,397.03, 1,928.03 and 807.53

Step by Step Solution

1. Step 1: Write the proportion equation
   1,397.03 : 1,928.03 = 807.53 : x
2. Step 2: Convert to fraction form
   1,397.03/1,928.03 = 807.53/x
3. Step 3: Cross multiply
   1,397.03x = 1,928.03 × 807.53
4. Step 4: Simplify right side
   1,397.03x = 1,556,928.39
5. Step 5: Solve for x
   x = 1,556,928.39/1,397.03
6. Step 6: Final answer
   x = 1,114.46