Finding the Fourth Proportional to 2,969.91, 4,436.82 and 1,921.37

Step by Step Solution

1. Step 1: Write the proportion equation
   2,969.91 : 4,436.82 = 1,921.37 : x
2. Step 2: Convert to fraction form
   2,969.91/4,436.82 = 1,921.37/x
3. Step 3: Cross multiply
   2,969.91x = 4,436.82 × 1,921.37
4. Step 4: Simplify right side
   2,969.91x = 8,524,750.66
5. Step 5: Solve for x
   x = 8,524,750.66/2,969.91
6. Step 6: Final answer
   x = 2,870.37