Finding the Fourth Proportional to 2,196.30, 3,029.76 and 1,947.90

Step by Step Solution

1. Step 1: Write the proportion equation
   2,196.30 : 3,029.76 = 1,947.90 : x
2. Step 2: Convert to fraction form
   2,196.30/3,029.76 = 1,947.90/x
3. Step 3: Cross multiply
   2,196.30x = 3,029.76 × 1,947.90
4. Step 4: Simplify right side
   2,196.30x = 5,901,669.50
5. Step 5: Solve for x
   x = 5,901,669.50/2,196.30
6. Step 6: Final answer
   x = 2,687.10