Finding the Fourth Proportional to 1,307.69, 1,804.60 and 748.17

Step by Step Solution

1. Step 1: Write the proportion equation
   1,307.69 : 1,804.60 = 748.17 : x
2. Step 2: Convert to fraction form
   1,307.69/1,804.60 = 748.17/x
3. Step 3: Cross multiply
   1,307.69x = 1,804.60 × 748.17
4. Step 4: Simplify right side
   1,307.69x = 1,350,134.82
5. Step 5: Solve for x
   x = 1,350,134.82/1,307.69
6. Step 6: Final answer
   x = 1,032.46