Finding the Fourth Proportional to 2,132, 2,942.16 and 1,200.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,132 : 2,942.16 = 1,200.72 : x
2. Step 2: Convert to fraction form
   2,132/2,942.16 = 1,200.72/x
3. Step 3: Cross multiply
   2,132x = 2,942.16 × 1,200.72
4. Step 4: Simplify right side
   2,132x = 3,532,710.36
5. Step 5: Solve for x
   x = 3,532,710.36/2,132
6. Step 6: Final answer
   x = 1,656.99