Finding the Fourth Proportional to 2,131.50, 2,941.50 and 1,200

Step by Step Solution

1. Step 1: Write the proportion equation
   2,131.50 : 2,941.50 = 1,200 : x
2. Step 2: Convert to fraction form
   2,131.50/2,941.50 = 1,200/x
3. Step 3: Cross multiply
   2,131.50x = 2,941.50 × 1,200
4. Step 4: Simplify right side
   2,131.50x = 3,529,800
5. Step 5: Solve for x
   x = 3,529,800/2,131.50
6. Step 6: Final answer
   x = 1,656.02