Finding the Fourth Proportional to 1,947.72, 2,687.08 and 1,200.38

Step by Step Solution

1. Step 1: Write the proportion equation
   1,947.72 : 2,687.08 = 1,200.38 : x
2. Step 2: Convert to fraction form
   1,947.72/2,687.08 = 1,200.38/x
3. Step 3: Cross multiply
   1,947.72x = 2,687.08 × 1,200.38
4. Step 4: Simplify right side
   1,947.72x = 3,225,517.09
5. Step 5: Solve for x
   x = 3,225,517.09/1,947.72
6. Step 6: Final answer
   x = 1,656.05