Finding the Fourth Proportional to 1,301.31, 1,795.10 and 803.61

Step by Step Solution

1. Step 1: Write the proportion equation
   1,301.31 : 1,795.10 = 803.61 : x
2. Step 2: Convert to fraction form
   1,301.31/1,795.10 = 803.61/x
3. Step 3: Cross multiply
   1,301.31x = 1,795.10 × 803.61
4. Step 4: Simplify right side
   1,301.31x = 1,442,556.29
5. Step 5: Solve for x
   x = 1,442,556.29/1,301.31
6. Step 6: Final answer
   x = 1,108.54