Finding the Fourth Proportional to 1,947.57, 2,687.27 and 1,161.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,947.57 : 2,687.27 = 1,161.69 : x
2. Step 2: Convert to fraction form
   1,947.57/2,687.27 = 1,161.69/x
3. Step 3: Cross multiply
   1,947.57x = 2,687.27 × 1,161.69
4. Step 4: Simplify right side
   1,947.57x = 3,121,774.69
5. Step 5: Solve for x
   x = 3,121,774.69/1,947.57
6. Step 6: Final answer
   x = 1,602.91