Finding the Fourth Proportional to 1,105.48, 1,655.82 and 693.38

Step by Step Solution

1. Step 1: Write the proportion equation
   1,105.48 : 1,655.82 = 693.38 : x
2. Step 2: Convert to fraction form
   1,105.48/1,655.82 = 693.38/x
3. Step 3: Cross multiply
   1,105.48x = 1,655.82 × 693.38
4. Step 4: Simplify right side
   1,105.48x = 1,148,112.47
5. Step 5: Solve for x
   x = 1,148,112.47/1,105.48
6. Step 6: Final answer
   x = 1,038.56