Finding the Fourth Proportional to 2,141.44, 3,211.88 and 754.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,141.44 : 3,211.88 = 754.72 : x
2. Step 2: Convert to fraction form
   2,141.44/3,211.88 = 754.72/x
3. Step 3: Cross multiply
   2,141.44x = 3,211.88 × 754.72
4. Step 4: Simplify right side
   2,141.44x = 2,424,070.07
5. Step 5: Solve for x
   x = 2,424,070.07/2,141.44
6. Step 6: Final answer
   x = 1,131.98