Finding the Fourth Proportional to 2,146.03, 2,961.24 and 1,201.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,146.03 : 2,961.24 = 1,201.78 : x
2. Step 2: Convert to fraction form
   2,146.03/2,961.24 = 1,201.78/x
3. Step 3: Cross multiply
   2,146.03x = 2,961.24 × 1,201.78
4. Step 4: Simplify right side
   2,146.03x = 3,558,759.01
5. Step 5: Solve for x
   x = 3,558,759.01/2,146.03
6. Step 6: Final answer
   x = 1,658.30