Finding the Fourth Proportional to 2,073.98, 3,110.67 and 688.27

Step by Step Solution

1. Step 1: Write the proportion equation
   2,073.98 : 3,110.67 = 688.27 : x
2. Step 2: Convert to fraction form
   2,073.98/3,110.67 = 688.27/x
3. Step 3: Cross multiply
   2,073.98x = 3,110.67 × 688.27
4. Step 4: Simplify right side
   2,073.98x = 2,140,980.84
5. Step 5: Solve for x
   x = 2,140,980.84/2,073.98
6. Step 6: Final answer
   x = 1,032.31