Finding the Fourth Proportional to 2,132.98, 2,943.42 and 1,188.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,132.98 : 2,943.42 = 1,188.76 : x
2. Step 2: Convert to fraction form
   2,132.98/2,943.42 = 1,188.76/x
3. Step 3: Cross multiply
   2,132.98x = 2,943.42 × 1,188.76
4. Step 4: Simplify right side
   2,132.98x = 3,499,019.96
5. Step 5: Solve for x
   x = 3,499,019.96/2,132.98
6. Step 6: Final answer
   x = 1,640.44