Finding the Fourth Proportional to 2,103.50, 3,155.70 and 716.96

Step by Step Solution

1. Step 1: Write the proportion equation
   2,103.50 : 3,155.70 = 716.96 : x
2. Step 2: Convert to fraction form
   2,103.50/3,155.70 = 716.96/x
3. Step 3: Cross multiply
   2,103.50x = 3,155.70 × 716.96
4. Step 4: Simplify right side
   2,103.50x = 2,262,510.67
5. Step 5: Solve for x
   x = 2,262,510.67/2,103.50
6. Step 6: Final answer
   x = 1,075.59