Finding the Fourth Proportional to 2,141.31, 2,955.67 and 1,985.49

Step by Step Solution

1. Step 1: Write the proportion equation
   2,141.31 : 2,955.67 = 1,985.49 : x
2. Step 2: Convert to fraction form
   2,141.31/2,955.67 = 1,985.49/x
3. Step 3: Cross multiply
   2,141.31x = 2,955.67 × 1,985.49
4. Step 4: Simplify right side
   2,141.31x = 5,868,453.23
5. Step 5: Solve for x
   x = 5,868,453.23/2,141.31
6. Step 6: Final answer
   x = 2,740.59