Finding the Fourth Proportional to 2,131.88, 2,941.99 and 1,200.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,131.88 : 2,941.99 = 1,200.38 : x
2. Step 2: Convert to fraction form
   2,131.88/2,941.99 = 1,200.38/x
3. Step 3: Cross multiply
   2,131.88x = 2,941.99 × 1,200.38
4. Step 4: Simplify right side
   2,131.88x = 3,531,488.25
5. Step 5: Solve for x
   x = 3,531,488.25/2,131.88
6. Step 6: Final answer
   x = 1,656.52