Finding the Fourth Proportional to 2,487.72, 3,725.91 and 1,190.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,487.72 : 3,725.91 = 1,190.10 : x
2. Step 2: Convert to fraction form
   2,487.72/3,725.91 = 1,190.10/x
3. Step 3: Cross multiply
   2,487.72x = 3,725.91 × 1,190.10
4. Step 4: Simplify right side
   2,487.72x = 4,434,205.49
5. Step 5: Solve for x
   x = 4,434,205.49/2,487.72
6. Step 6: Final answer
   x = 1,782.44