Finding the Fourth Proportional to 2,031.67, 2,803.85 and 1,235.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,031.67 : 2,803.85 = 1,235.31 : x
2. Step 2: Convert to fraction form
   2,031.67/2,803.85 = 1,235.31/x
3. Step 3: Cross multiply
   2,031.67x = 2,803.85 × 1,235.31
4. Step 4: Simplify right side
   2,031.67x = 3,463,623.94
5. Step 5: Solve for x
   x = 3,463,623.94/2,031.67
6. Step 6: Final answer
   x = 1,704.82