Finding the Fourth Proportional to 2,131.65, 3,197.62 and 744.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,131.65 : 3,197.62 = 744.83 : x
2. Step 2: Convert to fraction form
   2,131.65/3,197.62 = 744.83/x
3. Step 3: Cross multiply
   2,131.65x = 3,197.62 × 744.83
4. Step 4: Simplify right side
   2,131.65x = 2,381,667.32
5. Step 5: Solve for x
   x = 2,381,667.32/2,131.65
6. Step 6: Final answer
   x = 1,117.29