Finding the Fourth Proportional to 2,131.75, 2,941.82 and 1,200.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,131.75 : 2,941.82 = 1,200.25 : x
2. Step 2: Convert to fraction form
   2,131.75/2,941.82 = 1,200.25/x
3. Step 3: Cross multiply
   2,131.75x = 2,941.82 × 1,200.25
4. Step 4: Simplify right side
   2,131.75x = 3,530,919.46
5. Step 5: Solve for x
   x = 3,530,919.46/2,131.75
6. Step 6: Final answer
   x = 1,656.35