Finding the Fourth Proportional to 2,342.88, 3,510.72 and 1,189.44

Step by Step Solution

1. Step 1: Write the proportion equation
   2,342.88 : 3,510.72 = 1,189.44 : x
2. Step 2: Convert to fraction form
   2,342.88/3,510.72 = 1,189.44/x
3. Step 3: Cross multiply
   2,342.88x = 3,510.72 × 1,189.44
4. Step 4: Simplify right side
   2,342.88x = 4,175,790.80
5. Step 5: Solve for x
   x = 4,175,790.80/2,342.88
6. Step 6: Final answer
   x = 1,782.33