Finding the Fourth Proportional to 2,187.88, 3,019.03 and 1,291.41

Step by Step Solution

1. Step 1: Write the proportion equation
   2,187.88 : 3,019.03 = 1,291.41 : x
2. Step 2: Convert to fraction form
   2,187.88/3,019.03 = 1,291.41/x
3. Step 3: Cross multiply
   2,187.88x = 3,019.03 × 1,291.41
4. Step 4: Simplify right side
   2,187.88x = 3,898,802.30
5. Step 5: Solve for x
   x = 3,898,802.30/2,187.88
6. Step 6: Final answer
   x = 1,782.00