Finding the Fourth Proportional to 2,131.89, 3,197.04 and 744.84

Step by Step Solution

1. Step 1: Write the proportion equation
   2,131.89 : 3,197.04 = 744.84 : x
2. Step 2: Convert to fraction form
   2,131.89/3,197.04 = 744.84/x
3. Step 3: Cross multiply
   2,131.89x = 3,197.04 × 744.84
4. Step 4: Simplify right side
   2,131.89x = 2,381,283.27
5. Step 5: Solve for x
   x = 2,381,283.27/2,131.89
6. Step 6: Final answer
   x = 1,116.98